EW has confirmed that Billy Bob Thornton is in talks to join Warner Bros.’ upcoming film adaption of the hit HBO series, Entourage.

The film reunites Entourage stars Adrian Grenier, Kevin Connolly, Jerry Ferrera, Kevin Dillon, and Jeremy Piven, and continues to follow the Hollywood adventures of Vinnie Chase (Grenier) and his crew.

Thornton would play a billionaire cowboy-turned-film financier who sends his twenty-something son to keep an eye on things on set of the latest flick he’s financing, which happens to be Vinnie’s upcoming big-budget Dracula movie.

Entourage is currently shooting around Los Angeles and is expected to hit theaters sometime in 2015. The Hollywood Reporter first reported Thornton’s involvement.

EXCLUSIVE: Haley Joel Osment has landed a supporting role in Entourage, the feature transfer that Doug Ellin is directing from his HBO series creation for Warner Bros. Some 13 years removed from The Sixth Sense, Osment joins Jeremy Piven, Billy Bob Thornton, Adrian Grenier, Kevin Dillon and Jerry Ferrara along with the rest of the original TV cast. Ellin and Rob Weiss wrote the screenplay and Mark Wahlberg and Weiss are producing.

Osment gets the role as he finishes production on the Kevin Smith-directed A24 Films comedy Tusk, which will be released in the fall. He recently costarred with Will Ferrell, Tobey Maguire, Tim Robbins and Kristen Wiig in the IFC miniseries, The Spoils Of Babylon and can currently be seen in Amazon Studio’s Alpha House with John Goodman. Osment is repped by The Schiff Company and Resolution with attorney Bill Sobel.