Ringo Starr and Leo McKern steal their scenes in this entertaining vehicle for the Beatles. The former is sent a magic ring that won’t come off, which is unfortunate because the latter (“Clang”) has decided that the wearer of this jewel is to be sprayed in red paint and then ritually sacrificed to appease his cultish god. When the dead-pan Ringo realises just what peril he is in, he tries to get some scientists to help out and that only makes matters worse. You see the men in the white coats also realise that this ring is unique and they want it too! If it can’t come off voluntarily then “Foot...