Haley Joel Osment (The Sixth Sense) )has been cast in a supporting role in Doug Ellin's Entourage movie. He will join Jeremy Piven, Billy Bob Thornton, Adrian Grenier, Kevin Dillon, Kevin Connolly, and Jerry Ferrara along with the rest of the original HBO cast. There's no word on who he'll be playing, but I guess there's always a chance he could play himself.
Osment just finished working on Kevin Smith's comedy, Tusk. He also recently co-starred with Will Ferrell, Tobey Maguire, Tim Robbins, and Kristen Wiig in the IFC miniseries The Spoils Of Babylon.