The only Alec Guiness comedy I know that I've seen is Lady Killers. I rented that one because it had him and Peter Sellers in it.
Haven't seen the remake yet.
Some of Jerry Lewis' films I remember liking, like Cinderfella and the Geisha Boy, but I can't always take him.
There was one where he's playing a little boy or something and it's with Dean Martin, it was on AMC or TCM a year or so ago and I tried to watch it but I couldn't take it LOL!
Of course, in King of Comedy he was great. He should have found more roles like that. All that frenetic energy focused into a dramatic role, he could have been one of the greats.
You have got to get Guiness' "Kind Hearts and Coronets",my favorite. Guiness plays most of the roles and it has a funny ending that will knock your socks off.
Absolutely hysterical. In fact I think I'll watch it again myself,my public library has most of those great old movies.
Enjoy!
p.s.----Don't waste your time on the new version of "The Ladykillers",it was a bomb.