Where the U.K. version of Help!  is The Beatles' official 5th album release, the U.S. version is the soundtrack to the motion picture of the same name, much like A Hard Day's Night. This is The Beatles' second film. The U.S. formally saw the release of the tracks, "Ticket To Ride" as a single back in April.

 

But what is interesting, the U.S. version of the previous album, Beatle VI, had already released the tracks, "Dizzy Miss Lizzy", "Tell Me What You See" and "You Like Me Too Much" - released back in June.

 

Missing from the U.S. soundtrack, as opposed to the U.K. album are songs that will end up on the infamous Yesterday... And Today, including the U.S.-only hit single, "Yesterday", which will get a single release in the U.K. in 1971 on Apple Records.

 

Rejected Songs (from Wikipedia):

 

A few songs that were intended for the film were not used because of the Beatles' suggestions. Lennon and McCartney wrote "If You've Got Trouble" for Ringo Starr to sing, but the song was rejected and Starr sang "Act Naturally" (which is not in the film but is about being in the movies) instead.

 

"That Means a Lot" was written for the film, but the Beatles were not satisfied with their performance of the song and they gave it to P.J. Proby, who released it as a single.