Amber Heard has joined the cast of The Pineapple Express, the Columbia Pictures comedy starring Seth Rogen and James Franco, according to The Hollywood Reporter.

The story follows two pot-smoking friends (Rogen, Franco) who get mixed up with a drug gang. Heard will play Rogen's girlfriend who makes him promise to give up marijuana. She later discovers he lied to her.

David Gordon Green is directing, while Judd Apatow and Shauna Robertson produce.

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Heard appeared as the young Charlize Theron in North Country.