I could recommend thousands of great old movies!!! Musicals first: Seven Brides for Seven Brothers, Kiss Me Kate, The King and I, Music Man, Bye Bye Birdie, Singin' in the Rain (of course), Annie Get You Gun, My Fair Lady and Calamity Jane. There are many others that I can't think of too. For all other genres Casablana is EXCELLENT, I love the Thin Man series, It Happened One Night, Philadelphia Story, Bringing up Baby, Arsenic and Old Lace, Robin Hood, The Quiet Man, any John Wayne movies, Father Goose, It's a Wonderful Life, Mr. Smith Goes to Washington, North by Northwest, Charade, Operation Petticoat, How to Steal a Million, Roman Holiday, Yours Mine and Ours, The Ghost and Mr. Chicken and any Abott and Costello movies. Shall I continue? Most of the ones I mentioned are pretty clean, maybe some jokes but that are actually quite funny. If you need any more recommendations I'm here to help!