Ever seen this movie?
It's kinda cute? You don't have to watch it. All you need to know is that it's one boy's attempt to get through life in the middle of The Blitz, one of his biggest worries is school, and that the movie ends the exact same way as the trailer.
"It was a stray bomb! Thank you, Adolf" has, since 1987, been my personal favorite expression for kismet.
(today I learned it's a John Boorman. No wonder it's so goddamn weird.)