Watch: Keira Knightley sings in new 'Begin Again' clip (plus 2 new stills)

A new clip and two new stills for Keira Knightley's upcoming film Begin Again (formerly titled as Can A Song Save Your Life? In theaters July 4th) with Mark Ruffalo and Adam Levine has just been released last Friday. In the new clip, Keira sings with Adam Levine.

Speaking of Begin Again, Keira was in attendance yesterday at "Begin Again" Closing Night Premiere - 2014 Tribeca Film Festival (click link to see new photos of KK at the event).

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.

Watch new Begin Again clip featuring Keira and Adam Levine (plus 2 new stills of Keira) below...

Begin Again production stills featuring Keira Knightley as Gretta

(source: EW.com | The Weinstein Company)