The latest rumor in the unfolding Angelina Jolie/Brad Pitt divorce is that the cause is not Pitt's alleged affair with his Allied costar Marion Cotillard, it's Pitt's alleged drug use.

According to TMZ's sources, Jolie got "fed up" with Brad smoking pot (and maybe drinking), as the drug use combined with what she's apparently calling "an anger problem" that led to a situation she felt was unsafe for their kids.

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