Tomorrow I'll Wake Up and Scald Myself with Tea (Czech: Zítra vstanu a opařím se čajem) is a 1977 Czechoslovak comical science fiction film directed by Jindřich Polák.
A group of unaging (thanks to anti-aging pills, which have also been developed) Nazis conspires to alter the results of the Second World War by traveling back in time and supplying Adolf Hitler with a hydrogen bomb.
To this end, they bribe the corrupt time machine pilot Karel, who agrees to assist them.
When he realizes the nature of the Nazis' plans, Jan resolves to prevent their success.
After triggering several paradoxes by travelling back and forth in time, he manages to defeat the Nazis and resolve the consequences of his twin's death.