Kenneth Branaugh is awesome. Cruise is a dork, though. I probably won’t watch it. I can’t stand anything that he’s in.
He is fantastic in "Henry V" (1989).
We already know the ending. Cruise will simply do his trademark smirk after planting the bomb while the Branagh--as a composite of Bush/Hitler-- will thank him profusely for his service when Tom turns to leave. The final scene will show Cruise (still with the smirk) walking away from the bunker as it blows up behind him. Then the credits will roll and there'll be a tiny footnote on the screen after the crowds leave saying that Hitler survived the blast and had the colonel killed.