Tomorrow I'll Wake Up and Scald Myself with Tea

In the 1977 Czechoslovak science fiction comedy film "Tomorrow I'll Wake Up and Scald Myself with Tea", Jiří Sovák plays Klaus Abbard, a former Nazi who survives to the 1990s by taking anti-ageing pills, and Petr Kostka as Karel Bureš / Jan Bureš, his twin brother who impersonates him after their pilot's death. The twins' conflicting roles lead to a series of paradoxes as they attempt to prevent Klaus from altering the course of World War II by delivering a hydrogen bomb to Adolf Hitler.