If you loved The Navigator, try Sherlock Jr.
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 Buster Keaton, and they both carry the playful mood tag, and they sit in Action / Comedy territory. If that's the register that drew you to The Navigator, the second film will land in a comparable space — through a different lens.
playful
What Sherlock Jr. is
A movie theater, night, projector whirring. A clumsy projectionist dreams of detective work, a stolen pocket watch sparks chaos. Keaton's physical comedy genius shines through slapstick sleuthing.

