Movies for a pool party

I’m planning on having a lot of dive-in themed pool parties with a projector this summer and need a large list of movies that would be good to watch with everyone. Ages will vary depending on the party but I’ll have ages 2-70.

Some parties will be 20-30 year olds others will be for the whole family.

My list so far is: Jaws Luca Little Mermaid The Meg Lake Placid Piranha