This comedy is a straightforward goofball heist movie, complete with Peter Sellers doing multiple accents and a “why the heck not” ending. It’s a fun, often nonsensical cops-and-robbers romp through London, each character as incompetent as the next. There’s not a whole lot of silliness, surprisingly, despite its goofball tone, so the overall effect is a bit dry and stilted. It would have done better to go all in on the gimmick, but as it is it’s just pretty good.
Closest comparison: It’s like the Pink Panther (1963) by way of Funeral in Berlin.
Setting: Crime
Plot: Heist
Tone: Comedy