I'm probably too late but yes, I think it's a good film. Not very sympathetic to Peter Sellers but then it's hard to be anything else, he doesn't seem to have been a very pleasant chap. Good performances all round.
Actually, I didn't know this was on so thanks for the heaRAB up
Film 4 showed The Wrong Arm Of The Law earlier yesterday. Good example of Sellers' ability to give a completely implausible character more depth and credibilty than it deserves.