Kevin Dillon, Jerry Ferrara, Adrian Grenier and Jeremy Piven arrived early as the movie shot a scene showing a fake interview between their fellow cast members with Carson Daly.
Based on an HBO series of the same name which ended in 2011 after eight seasons, "Entourage" tells the story of a group of guys who enjoy Hollywood lives.
Set to take place about a year after the events on the series, "Entourage" sees Grenier's character Vincent making a film.