I'm so glad you loved Wait Until Dark. I tried to share it with some roommates a while back and they made me turn it off after ten minutes because it was "too slow." It's always been very frustrating for me, because there are so many good classics out there that I would love to share with my friends, but most don't like them the way I do, and the people I'd usually watch movies with often are the kind of people who have something against anything filmed in black and white.
I love Alfred Hitchcock movies--or rather, about half of them--because of the smart intrigue rather than them being actually scary. Sure, some of them are dated--North by Northwest, for example--but some are funny. Try The Trouble with Harry for Hitchcock's morbid humor.
I also have to re-rent Barefoot in the Park at least once a year--Jane Fonda and Robert Redford as clueless newlyweds, and complete opposites in personality, and the way they figure out their first months of marriage. (comedy-drama)
I could just list my favorites, at least the ones currently on my shelf:
Stage Door, starring Katherine Hepburn, Ginger Rogers, and Lucille Ball before they were big--a comedy-drama about young actresses living in a boarding house trying to make it in New York theatre. An almost all-female cast, which I thought pretty stunning for a film made in 1938.
You Can't Take It with You--starring Jimmy Stewart. By the same director as It's a Wonderful Life (Frank Capra), but a little less sentimental, I think.
Bringing Up Baby--Cary Grant and Katherine Hepburn. Fuzzy likes this one, too. Romantic comedy. In fact, speaking of Grant-Hepburn, if you ever get a chance to see Holiday, made in 1938--I believe it was Cary Grant's first American film--see it. It wasn't long after his days in the circus/vaudeville as a tumbler, and they do some tumbling. Rather fun
Gentleman's Agreement--Gregory Peck and Dorothy McGuire--a film ahead of its time about everyday racism
Speaking of Gregory Peck, definitely a must-see is To Kill a Mockingbird. He makes a great Atticus Finch.
Also, hilariously funny is Danny Kaye in, well, practically anything, but especially in The Court Jester, his crown piece, I think.
Then there's How to Marry a Millionaire--a comedy.
And My Favorite Wife, which is my all-time favorite classic comedy.
I could go on and on. I think I just listed about 2 or 3 of everything, except that I don't have a whole lot of titles on the suspense ones. Those are the ones to go for, not the ones meant to be horror. Like--watch the original French Diabolique--that's a scary one.
Um... Yeah. I'll stop now. It's about as bad as getting me going on children's literature, actually.