Billy Bob Thornton Billy Bob Thornton

Vincent Chase's posse is adding an Oscar winner.

Billy Bob Thornton is in negotiations to join the cast of the upcoming Entourage movie, according to The Hollywood Reporter.

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Thornton, 58, will play a billionaire cowboy-turned-film financier who puts up money for Vinnie's new project, a big-budget Dracula film. In the Entourage movie, Thornton's character sends his 20-something son to Los Angeles to keep an eye on his investment.

Production on the highly anticipated flick started two weeks ago.

Thornton will next star in FX's limited series Fargo.

What do you think of Thornton's casting?