This is surely the role Jessie Eisenberg was born to play - essentially a 1930's extension of Woody Allen.
Last year there was rumblings that Kristen Stewart, Blake Lively, Steve Carrell and Eisenberg were among stars working on a top secret Allen project. Now (the very French) trailer has dropped via Mars Films, with the film set to debut at Cannes this coming May.
Eisenberg plays a fish out of water, moving to work for his uncle (Carrell) in Hollywood - but he seems more preoccupied with winning the love of his uncle's secretary (Stewart) - who happens to be seeing another man. While Eisenberg's cousin attempts to lure him into some shady dealings, Blake Lively appears as the quintessential blonde bombshell in some knockout outfits.
Fin.