Kind Hearts and Coronets!

Other Ealing comedies like the Lady Killers would be up there on my list too. Rick Fielding once mentioned a film in an Annexe thread, "School For Scoundrels" - a great one (I think) for those who like that old Brittish humour.

Other favourites would include the Laurel and Hardy gem "Way Out West" (the one which has the Blue Ridge Mountains of Virginia"), any old Hammer Horror, Airplane, African Queen, Casablanca, American Werewolf in London...

All this from someone who rarely watches films...

My bigget dislike is things like the stuff from Stallone like Rambo, though at times, maybe it gives a scarey insight into what I'd call the American "Bush" type mentality or the shoot them up mentality that seems to support it...