Quoted from lennon-legend, posted March 16, 2004, 4:38am at here Voted for 'a hard day's night'...the thing i don't like in yellow submarine is that they didn't even let the beatles do their own voices
Quoted from Maria, posted April 6, 2004, 9:22pm at here It wasn't that "they" didn't "let" the Beatles use their own voices. "They" would've given their eye-teeth for real Beatle voices.It was the Beatles themselves that didn't want anything to do with the film. It was a "contractual obligation" thing. Later, when they saw what a quality job the animators had done, the Fabs agreed to do the film sequence at the end, and be more visibly associated with the film.