The movie version of "Entourage" launches in theaters today, but as part of the film's promotions, Cadillac teamed up with the HBO show's writer and creator Doug Ellin for this funny short film about agent Ari Gold's return to Hollywood after a very short retirement in Italy.

Gold, as played by Jeremy Piven, is shown looking bored out of his mind by the idyllic Italian lifestyle (although his wife looks ecstatic as she hilariously stomps grapes and rides a bike through vineyards.)

Then, he's seduced back into the world of showbiz by a mysterious stranger driving a shiny Cadillac (the Ciel concept car; various other Cadillacs will appear in the actual film.) And who would that stranger be? You'll have to watch to find out.

Ellin directed the short, with CAA Marketing the creative agency on the campaign and Publicis as agency.

In other "Entourage" tie-ups, Johnny Drama, played by Kevin Dillon, returned as the unexpected spokesman for Johnnie Walker.