All ages admitted. There is no content that would be objectionable to most parents. This is one of only two ratings dating back to 1968 that still exists today.
Lewis Gilbert has put together quite a good cast for this light-hearted wartime tale of POWs who find quite an innovative way of escaping and goon-baiting at the same time. Jack Warner ("Maddox") heads up the Allied side while Frederick Valk the Nazi one - and battle commences. The allies have a secret weapon - well, two actually. One is "Ainsworth" (Anthony Steel) who invents the other - "Albert"...