I can’t remember when this movie came out. I was born in the 80’s for point of reference. I don’t believe it was made after.

what I remember about the movie is that a group of people were on a ship (for lack of a better word) and it sunk , but they lived (or did they really?). When the ship came to the top, many many years passed but the people hadn’t aged? I think this was an old movie. This is all I remember. Thank you for any help you can give!