Never one to ignore a bandwagon when I see one, I figured I'd contribute to the increasing number of "what film is this?" threads. However, mine is at least marginally more obscure than some. The film in question was (I think) made somewhere in eastern europe. It would have been quite a long time ago - I was very young when I saw it. It's a science fiction piece about a service that runs time travel tours for tourists - then one of the time ships gets hijacked by some elderly nazis who want to go back in time and change history by giving Hitler the secret of the H-Bomb so that he can win WWII. It also includes identical twins, one of whom is a timeship pilot but who chokes on a roll and dies early on, only for the other one to switch places with him; and there was a curious weapon in the form of a hand-held spray which causes the victim to turn green and remain frozen and unconscious for a long period. (As you may have gathered by now, it was, essentially, a rather weird comedy). Anyone recognise it?