If you were excited for the upcoming Entourage movie (I use the phrase 'if you were excited' sarcastically), bad news: According to Page Six, production has been delated because even the stars are holding out on starting to film the movie. From the tabloid:
A source told us that despite the two-year lead up to production, “They wanted to start filming early this summer, but the cast has been on hold. [Jeremy Piven] finally signed his contract two weeks ago. His deal closed Aug. 29. But there are other members of the cast, including Adrian Grenier and Jerry Ferrara, who are still holding out.”
So, basically, Piven did his best Ari Gold impression and negotiated the contract for ages, and Grenier is doing his best Vince impression by not being able to decide whether or not to do the movie. They're kind of already in character.
Production was supposed to begin in May, but with these setbacks, it's not too clear when it ever will, or when it'll actually be released. Considering the amount of time this film was taken—it was announced in January 2012, and the script finished a year later—by the time this thing hits theaters, it better be Oscar-worthy stuff. No one should have to wait this long for an Entourage movie.
Not much is clear about the plot yet, but it'll follow the original cast from the show, should they all return.