If you loved Sailor Moon S the Movie: Hearts in Ice, try Futari wa Precure Max Heart Movie 2: Friend of Yukizora
A bridge between a film you've already seen and one most people haven't. Futari wa Precure Max Heart Movie 2: Friend of Yukizora has roughly 11.8× fewer votes than Sailor Moon S the Movie: Hearts in Ice — 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.

Sailor Moon S the Movie: Hearts in Ice

Futari wa Precure Max Heart Movie 2: Friend of Yukizora
What they share
Theyboth carry the atmospheric, cozy, cult, foreign gem, late night mood tags, and they sit in Action / Animation / Fantasy territory. If that's the register that drew you to Sailor Moon S the Movie: Hearts in Ice, the second film will land in a comparable space — through a different lens.
What Futari wa Precure Max Heart Movie 2: Friend of Yukizora is
Aimed squarely at the younger anime fan, this one. Hikari finds a mysterious egg, which draws unwanted attention from the Dark Lord's henchmen. Cue battles and lessons learned. It's a decent entry for established fans of the franchise.