Bishôjo senshi Sailor Moon Super S: The Movie

When the Evil Madame Vadiane kidnaps Chibi-Usa, the senshi rush to her rescue with the aid of Chibi-Usa's new friend, Peruru. After trying to find Chibi-Usa and fight off Vadiane's henchmen to no avail, the three outer senshi (Neptune, Uranus, and Pluto) come to their aid. To rescue Chibi-Usa before she falls into a permanent dream filled sleep, Usagi must enter the Black Dream hole and save her... (imdb)