Begin Again is a 2013 American musical comedy-drama film written and directed by John Carney and starring Keira Knightley and Mark Ruffalo. Knightley plays a singer-songwriter who is discovered by a struggling record label executive (Ruffalo) and collaborates with him to produce an album recorded in public locations all over New York City.

John Carney is an Irish film director, producer, screenwriter and lyricist who specialises in musical drama films. He is best known as the showrunner and executive producer of Modern Love on Amazon Prime Video, for his films Once, Begin Again, and Sing Street. He is also a co-creator of the Irish TV drama series Bachelors Walk.