If you needed proof that Hollywood loves to recycle the same actors, consider this: breakout stars Shailene Woodley and Ansel Elgort are starring in two of the most talked about YA movies next year, Divergent and The Fault in Our Stars, as siblings and lovers, respectively. Because there are no other young and beautiful Caucasian twentysomethings who could've possibly taken one of the other characters.

But this isn't the first time accidental incest has happened in movies and TV. Here are more examples of a couple of actors sharing blood in one project and sharing a bed in another. 

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