I assure you, as great as a movie entitled "They Saved Hitler's Brain" sounds, it does not live up to that title. It doesn't even live up to the title "They." It's just disappointing.
The plot in general is a little difficult to follow, but as I understand it, well, they saved Hitler's brain. And given that a brain is really no good without a head, they also saved Hitler's head, and a bit of a neck. That way he could live in a big glass jar and bark orders in German.
Sure it sounds fun, but we only see Hitler Head for about 5 minutes out of the 90 total. The rest of the time winds through confusing kidnapping plots, and government scientist, and formulas, and lots of boring people who speak in unnecessary Spanish accents. I never quite understood who was the main character (They sort of shift back and forth), or who was the villain (Hitler I guess, but really his role is more of a cameo). Until they get to the wacky Nazis, it's all rather unfunny, and generally uninteresting.
The movie is poorly made, and that keeps it from being a complete snooze, but with a title like "They Saved Hitler's Brain" I really expected better. Disappointing.