If you loved Star Trek IV: The Voyage Home, try Star Trek III: The Search for Spock
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Both films are directed by Leonard Nimoy, and they both carry the uplifting mood tag, and they sit in Adventure / Science Fiction territory. If that's the register that drew you to Star Trek IV: The Voyage Home, the second film will land in a comparable space — through a different lens.
uplifting
What Star Trek III: The Search for Spock is
San Francisco, a rainy night, a Vulcan's katra lingering. The Enterprise crew is in shambles, a stolen ship, a Genesis planet on the horizon. Nimoy balances action and emotion with surprising ease.

