1. Sailor Moon R Movie: The Promise of the Rose (1993) - This movie is part of the Sailor Moon R season and reimagines the story of the first movie, "Sailor Moon S: The Heart of the Golden Crystal". It focuses on a young prince who seeks the power of the silver crystal to cure his illness.
2. Sailor Moon S: The Heart of the Golden Crystal (1994) - This movie takes place during the Sailor Moon S season and tells the story of a young prince who is trying to find the legendary Golden Crystal to help save his dying father, the King.
There is also a live-action movie:
* Pretty Guardian Sailor Moon (2014) - This is a live-action movie based on the original Sailor Moon anime. It's a standalone movie that retells the story of the first few arcs of the series.
There are also several non-official movies made by fans, but these are not officially part of the Sailor Moon franchise.