Jennifer Garner and Michael Caine have been cast alongside Al Pacino, Annette Bening, and Bobby Cannavale in Imagine, about an aging rock star (Pacino) who reconnects with his grown son after opening a letter sent from John Lennon to his 19-year-old self. Garner will play Pacino’s daughter-in-law, with Caine onboard as his longtime friend and manager. Writer Dan Fogelman (Crazy, Stupid, Love, Tangled) is set to direct from his own script for Inimitable Pictures and Mister Smith Entertainment, with filming to begin late June/early July in LA. The based-on-a-true-story pic was originally set up at WB for Steve Carell before it went into turnaround and was revived as an indie production. Denise DiNovi, Jessie Nelson, and Nimitt Mankad are producing. Shivani Rawat is executive producing for Inimitable Pictures which is financing the film. David Garrett’s Mister Smith Entertainment will be shopping foreign rights this week at Cannes. WME Global is handling US sales and negotiated the deal with Mister Smith, with Stephen Dembitzer LLP repping Inimitable Pictures.