We know that not all actors get along. In fact, some even hate their co-stars, but that's understandable. Yet we like to think of Hollywood stars as animal-loving people (which most of them are, for sure). But sometimes the unpredictability of working with animals is such that even the calmest actors can lose their minds. Not only can animals ruin a perfectly good take, they can even turn violent!
Click through the gallery to learn more about which actors and actresses didn't like working with animals.