Oh, God, Cary Grant....so suave, so handsome, so charming. The Philadelphia Story, Arsenic and Old Lace, Bringing Up Baby, and so many more.
I don't think they can make screwball comedies these days - when they try, they just come over as heavy handed.
I loved Rosalind Russell in His Girl Friday and The Women, and was rather sad to read that she was a supporter of fascism. Rather disillusioning.
I have to admit that I love the Marx Brothers. I'm not a big flan of slapstick - I'm afraid I can't stand Norman Wisdom - but there is a lunatic element in the films of Groucho and co which just appeals to me.
But my favourite film of all, old or new, has to be Some Like It Hot. Jack Lemmon as Daphne was superb.