The Weinstein Company has released the first trailer for director John Carney’s (Once) new film Begin Again, which was formerly titled Can a Song Save Your Life?.  Mark Ruffalo stars as a washed up A&R man who discovers a young singer-songwriter (Keira Knightley) soon after being fired, and the two set out to change each other’s fortunes for the better while crafting a unique concept album.  I caught the pic at the Toronto International Film Festival last fall where it was a bit of a crowd pleaser, and while I liked it well enough, the song's aren't really all that memorable and it falls quite short of Carney's previous effort.  Nevertheless, Ruffalo and Knightley give a pair of swell performances, and Adam Levine is surprisingly strong as Knightley's rock star ex-boyfriend.

Hit the jump to watch the trailer and click here to read Matt’s review from TIFF.  The film also stars Hailee Steinfeld, Catherine Keener, Mos Def, Cee-Lo Green, and James Corden.  Begin Again opens in limited release on July 4th. [Update: We've added the first poster as well.]

Here's the official synopsis for Begin Again:

The latest film from writer-director John Carney (ONCE), BEGIN AGAIN is a soul-stirring comedy about what happens when lost souls meet and make beautiful music together. Gretta (Keira Knightley) and her long-time boyfriend Dave (Adam Levine) are college sweethearts and songwriting partners who decamp for New York when he lands a deal with a major label. But the trappings of his new-found fame soon tempt Dave to stray, and a reeling, lovelorn Gretta is left on her own. Her world takes a turn for the better when Dan (Mark  Ruffalo), a disgraced record-label exec, stumbles upon her performing on an East Village stage and is immediately captivated by her raw talent. From this chance encounter emerges an enchanting portrait of a mutually transformative collaboration, set to the soundtrack of a summer in New York City.