“A Room With a View” has (IIRC) a very brief moment of nudity, a brief scene of violence but isn’t graphic. I find it charming.
If you are okay with old b/w films, “The Awful Truth,” “His Girl Friday,” and “Philadelphia Story” are all fantastic.
Lots of Austen adaptations would maybe fit.
The fantastic “The Importance of Being Earnest” from the fifties is perfect. I haven’t seen any of the newer adaptations.
So many others might fit, but I don’t remember them well enough to know if they really do fit, like “Calendar Girls.” I think it might have been fairly heavy at times, though I might be confusing it with something else.