Help! (1965)

The murderous Eastern cult of Kaiili discovers that its sacred sacrificial ring is missing. Ringo, drummer of The Beatles has it, sent it by a female member of the cult (who was supposed to be sacrificed) as a gift. High Priest Clang, Ahme, Bhuta, and several cult members leave for London to retrieve the ring, but after several attempts fail to steal it back. Ringo then finds the ring is stuck on his finger, and after a confrontation in an Indian restaurant learns that if he does not return the ring soon he will become the next sacrifice. It's a race against time and across the world, with John, Paul and George trying to protect their friend while they're all being chased not only by Clang and his minions, but also by an obsessed scientist, his assistant and the Chief Inspector of Scotland Yard. Will Ringo be saved, or will he be sacrificed?