Moment to Moment is a composition by Henry Mancini with lyrics by Johnny Mercer, written as the title theme for the 1966 film of the same name, a psychological thriller directed by Mervyn LeRoy and starring Jean Seberg and Honor Blackman. The piece is a romantic ballad that exemplifies Mancini's gift for crafting elegant, melodically rich film themes. Its smooth, sweeping melody is supported by sophisticated harmonic movement typical of Mancini's orchestral writing style, blending cinematic grandeur with the harmonic sensibility of jazz-influenced popular song. The composition was originally recorded by Mancini with his orchestra and chorus for the film soundtrack, released in late 1965. Freddie Hubbard included the piece on his 1971 CTI album First Light, where it received an instrumental jazz treatment arranged by Don Sebesky, featuring Hubbard's trumpet as the lead melodic voice. While Mancini composed dozens of memorable film themes during the 1960s, including Moon River, Days of Wine and Roses, and the Pink Panther theme, Moment to Moment remains one of his lesser-known works. The film score received a world premiere complete release in 2023 on La-La Land Records as part of a limited-edition collection, renewing some interest in the composition. The tune's graceful melodic lines and rich harmonic palette make it well suited to instrumental interpretation, particularly as a vehicle for expressive ballad playing.