Up is honestly only worthwhile for the opening sequence. You can turn it off after that and not miss anything decent.

Inside Out is one of the best movies I've ever seen. And a rare film which actually is deeply meaningful to young and old alike and also actually needed to be from a child's perspective to work rather than the traditional we're throwing children's pov characters out there to sell toys.
And while we're giving recommendations, Wall-E is one of my favorite sci-fi movies and still one of the best love stories I've ever seen.
Wall-E is great as well.