RE:
Time travelers from the far future show up in Hitler’s bunker and convince him to leave with them (they leave a duplicate body so as not to cause a paradox).
Did you get the chance to watch the modern version of Twilight Zone ( in color ) where a woman was given the chance to return to the past and undo history by being the baby sitter of Adolf Hitler when he was a baby in order to kill him while he was an infant ?
It was narrated by Academy Award winner Forrest Whitaker.
It was from the third Twilight zone series (2002). The episode is called "Cradle of Darkness".
http://en.wikipedia.org/wiki/Cradle_of_Darkness_%28The_Twilight_Zone%29
I only have the first and second Twilight Zone series, I may have to pick up the third.
For example the baby sitter kills the original baby Adolf Hitler but the parents steal a replacement baby from an orphanage and name him Adolf Hitler too, who then becomes the Hitler we know, meanwhile the orphanage burns down sans “Hitler” so the tyrants life is actually saved by the babysitter.