▲Lauren Bacall, then 72, had been in the industry for more than 50 years when she received her first nomination ever, this in the Best Supporting Actress category, for her role in 'The Mirror Has Two Faces.' She had all that Hollywood nostalgia going for her...

▲But it was French actress Juliette Binoche who took the award home, for her performance in 'The English Patient.' Even Binoche admitted onstage that she expected Bacall to win.

▲Judy Garland's incredible career had gone unrecognized by the Academy Awards until she was expected to win the Best Actress Oscar for her role in 'A Star Is Born.'

▲The prize, however, went to Grace Kelly for 'The Country Girl.' At the time, Kelly was only a few years into her acting career.

▲Marisa Tomei, though now an accomplished actress, was the least obvious choice among accomplished talents like Judy Davis, Vanessa Redgrave, Miranda Richardson, and Joan Plowright.

▲No one could have expected Tomei would win, much less for her role in 'My Cousin Vinny,' and rumors began to float that her win was actually a mistake.

▲The beautifully tragic gay Western 'Brokeback Mountain,' starring Heath Ledger and Jake Gyllenhaal, had already won the public over, so naturally it seemed poised to earn Best Picture.

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The top honor, however, went to Paul Haggis' drama 'Crash,' forever staining the Oscars' reputation with this inexplicable surprise.

▲'Pulp Fiction' and 'The Shawshank Redemption' were extremely strong contenders for Best Picture, and the popularity of both films has remained monumental.

▲Yet, for reasons that have only become more bewildering as the years progress, the award went to 'Forrest Gump' instead.

▲Martin Scorsese's gangster classic 'Goodfellas' seemed to make him a shoo-in winner for the Best Director category.

▲But the iconic director lost out to Kevin Costner, who directed and starred in 'Dances with Wolves.'

▲In 1977, it seemed that either 'All the President's Men' or 'Network' were going to take home Best Picture.

▲But many movie lovers were surprised when 'Rocky,' starring Sylvester Stallone, was announced as the winner instead.

▲Steven Spielberg's 'Saving Private Ryan' was widely believed to be the favorite for Best Picture.

▲But in the end it was 'Shakespeare in Love' that took home the award. Many whispers spread arguing that Harvey Weinstein paid to increase the odds in his film's favor.

▲The nominees for Best Actor in 2003 included enormous Hollywood names, such as front-runners Daniel Day-Lewis ('Gangs of New York') and Jack Nicholson ('About Schmidt').

▲However, it was the lesser-known Adrien Brody who won the Oscar in the end, for his role in 'The Pianist.'

▲With the massive success of 'The Godfather,' nearly everyone expected to see Francis Ford Coppola walk onto the stage to accept the award for Best Director.

▲To everyone's surprise, however, it was Bob Fosse who took home the trophy for his work on 'Cabaret.'

▲Orson Welles' 'Citizen Kane' has been considered one of the greatest films ever made, so you can imagine people's surprise when it lost the race for Best Picture.

▲Instead, the award went to John Ford's 'How Green Was My Valley.'

▲In 2001, several big names were in the running for Best Supporting Actress, including Kate Hudson ('Almost Famous'), Judi Dench ('Chocolat'), and Frances McDormand ('Almost Famous').

▲To everyone's surprise, Marcia Gay Harden took home the Oscar for her role in 'Pollock,' despite the fact that her performance was not recognized at the Golden Globes, SAG Awards, or BAFTAs.

▲In a time where Westerns were thriving, 'High Noon,' directed by Fred Zinnemann, was tipped to win for Best Picture.

▲Instead, it was 'The Greatest Show on Earth,' starring Charlton Heston and Betty Hutton, that took home the night's biggest prize.

▲Jodie Foster ('Taxi Driver') and Piper Laurie ('Carrie') were in the running for Best Supporting Actress, but they lost out to someone who appeared on screen for less than six minutes...

▲Beatrice Straight won the Oscar for her role in 'Network,' though she appeared in the film for just five minutes and forty seconds. Unsurprisingly, she set the record for winning an Oscar with the least amount of screen time.

▲Movie lovers everywhere were surprised when Memphis rap group Three 6 Mafia won the Oscar for Best Original Song. Their track, 'It's Hard Out Here for a Pimp,' was featured in the film 'Hustle & Flow,' which starred Terrence Howard.

▲"For anyone keeping record," then-host Jon Stewart joked, "Martin Scorsese, zero Oscars. For Three 6 Mafia, one."

▲Edward Norton ('American History X'), Nick Nolte ('Affliction'), and Tom Hanks ('Saving Private Ryan') were all strong contenders for Best Actor in 1999.

▲But the award went to Roberto Benigni, for his role in 'Life Is Beautiful,' which also won Best Foreign-Language Film that night.

▲Armando Iannucci's 'In the Loop' and Jason Reitman's 'Up in the Air' were favorites in the category for Best Adapted Screenplay.

▲It was Geoffrey Fletcher, however, who ended up winning the Oscar for his work on the film 'Precious.'

▲The Oscar for Best Picture seemed destined for either '127 Hours,' 'The Social Network,' or 'The Fighter.'

▲Many were shocked when the award went to 'The King's Speech' instead, which was a great film that showcased Colin Firth's talent but ultimately seemed a bizarre choice.

▲By 2017, people had become accustomed to expect certain choices by the Academy, which is why it seemed 'La La Land' was tipped to win Best Picture.

▲But after a mistake announcement that 'La La Land' had won, the true victor of the night was revealed: 'Moonlight.' The shock was tangible.

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And yet, against 'Roma,' 'Black Panther,' 'BlacKkKlansman,' 'Bohemian Rhapsody,' 'The Favourite,' 'A Star Is Born,' and 'Vice,' Best Picture was awarded to 'Green Book.'

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Even Olivia Colman was surprised when she was named Best Actress for her role in 'The Favourite.' She gave a shout-out to Glenn Close, adding, "This is not how I wanted it to be, and I think you’re amazing, and I love you very much."

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Many believed that Alfonso Cuarón’s 'Roma' would make history both as the first Netflix film to win Best Picture and also as the first foreign-language film to surpass English contenders.

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Receiving her seventh Oscar nomination, for her role in 'The Wife,' many thought Glenn Close would finally have her moment onstage at the Academy Awards. But they were wrong.

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Winona Ryder's performance in Martin Scorsese's 'The Age of Innocence' seemed to be the favorite, with other strong contenders like Rosie Perez ('Fearless'), Emma Thompson ('In the Name of the Father'), and Holly Hunter ('The Firm') also vying for Best Supporting Actress.

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Instead, 11-year-old Anna Paquin, a first-time actress in 'The Piano,' was announced as the winner. You can tell from this photo that it took her by surprise as well!

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But it was Bong Joon-ho ('Parasite'), a South Korean director with a foreign language film who had never received an Oscar nod before, who took both top honors. He also made history as the first Asian filmmaker to receive Best Director, Best Picture, Best Original Screenplay, and Best International Feature for one film.

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With Hollywood favorites like Quentin Tarantino ('Once Upon a Time in Hollywood'), Martin Scorsese ('The Irishman'), and Sam Mendes ('1917') in the running, many placed their bets on the recurring greats.

▲Boseman was a favorite in the run for Best Actor this year for his role in 'Ma Rainey's Black Bottom,' and many found his snub as a total surprise. Hopkins added in his video, "I want to pay tribute to Chadwick Boseman, who was taken from us far too early."

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The Academy Awards are one of Hollywood's most anticipated events, gathering the industry together to watch some of the greatest films of the year compete for elite titles. With so much variety to choose from, combined with the often wide discrepancy between audiences and Academy members, there have been more than a few unexpected results over the years.

This year, the biggest shock winner of the night was Sir Anthony Hopkins, who won the Best Actor award for his role in 'The Father.' Many viewers were surprised by the win, as it appears the category was moved to the end of the show in anticipation of a tribute to the late Chadwick Boseman. Even Hopkins did not show up to the ceremony, neither in person or via video, though the morning after he shared a video on social media addressing his win.

"At 83 years of age I did not expect to get this award, I really didn't," he said, standing outside his home in Wales. While he was grateful to the Academy, he maintained that he really did not think he was going to win, and he paid a short tribute to Boseman as well. Other nominees for the award included Riz Ahmed ('Sound of Metal'), Gary Oldman ('Mank'), and Steven Yeun ('Minari').

The shock was so widespread that people began drawing comparisons between the end of this year's Oscars with that of 2017, where the event ended on 'La La Land' accidentally being announced for Best Picture instead of actual winner 'Moonlight'—except this time there was no mistake.

Click through this gallery to see the biggest shock winners over the history of the Academy Awards. How many of these moments do you remember?