Sgt. Pepper’s Lonely Hearts Club Band is one of those films that’s so bad it’s really really bad, but maybe worth watching as a curiosity. The problem is that it has no dialogue save for narration by George Burns. The cast pantomime the action and perform the songs in lieu of script. The result is a horrible shoehorning of song into story and story around song which really doesn’t work.
Admittedly, it's actually kinda cool to hear the BeeGees playing Beatles songs, but Peter Frampton's godawful lead vocals ruin that a little bit. As far as the movie as a whole: a wretched, painful experience devoid of joy. The attempt at telling the story purely as rock opera (IE: no dialogue, only singing) fails miserably as the script struggles to make coherent narrative out of the psychedelic lyrics.