If you loved The Hitchhiker's Guide to the Galaxy, try Dragon Ball: Yo! Son Goku and His Friends Return!!
A bridge between a film you've already seen and one most people haven't. Dragon Ball: Yo! Son Goku and His Friends Return!! has roughly 7.2× fewer votes than The Hitchhiker's Guide to the Galaxy — it's a deeper cut, not a mainstream recommendation. Here's what they share, and what the second one does that the first one doesn't.

The Hitchhiker's Guide to the Galaxy

Dragon Ball: Yo! Son Goku and His Friends Return!!
What they share
Theyboth carry the playful mood tag, and they sit in Adventure / Comedy / Science Fiction territory. If that's the register that drew you to The Hitchhiker's Guide to the Galaxy, the second film will land in a comparable space — through a different lens.
What Dragon Ball: Yo! Son Goku and His Friends Return!! is
Here's a DBZ movie that really wants to get the old gang back together. Goku and pals head to a feast at Mr. Satan's place, only to be interrupted by Vegeta's little brother, Tarble, who warns them about two incoming space bullies. It's good to know that even after saving the universe, you still have to deal with family drama.