Sometimes a film is remade so long after the original that people aren't aware that it's a remake at all. Other times, as is the case of 'The Island,' the makers don't want the public to know that the movie is a remake.
There are also numerous remakes that became Hollywood blockbusters, but were actually re-imagined French, Spanish, South Korean, and Cantonese originals.
Click on to see 30 movies that you didn't know were remakes.