[Looking for the name of an old B&W movie]

Thank you guys SO MUCH! one more question.Comedy. Color. Maureen O'Hara, and ... somebody. She and another man were trapped on an island. Husband thought she was dead. They both survived and she comes back to find husband either married or almost married to someone else. Husband goes to see the guy his wife was stranded on an island with and see's him at some hotel pool right before he jumps off the diving board and that he's a really good looking in shape guy who is adored by women and gets very jealous. I think it's the same guy she played in Parent trap with. BTW BIG Maureen O'Hara fan My fav is McClintock with John Wayne. Thanks

[Looking for the name of an old B&W movie]

All I remember is there is a married couple that are ghosts. I think they died in a car crash. I thought it was Ginger and Fred, but can't find it. They are "haunting" and middle aged man that I think he was rich. I thought it was "Top Hat" but no. I saw it AGES ago with my mother and have recently been thinking about it. I know it's a comedy. Black and white. Maybe late 30's early 40's? and I'm pretty sure it was a musical. Sorry, not much to go on. The scene I can remember was the old "live" guy was sleeping against a tree and the couple kept arguing with him about something. Trying to get him to do something, maybe talk to a woman he thought he was in love with. I know she said his name and it's right on the edge of my brain but I just can't grab a hold of it. If you have any information I would greatly appreciate it. Thank you.