Urusei Yatsura Movie 4: Lum The Forever
Genres: Action, Adventure, Comedy, Drama, Romance, Sci-Fi
Type: Movie, Episodes: 1
Aired: Feb 22, 1986
Studio: Studio Deen
Source: Manga
Rating: PG-13 - Teens 13 or older
Synopsis:
Strange things begin happening in Tomobiki Town... 

When a great cherry tree, "Tarozakura" is cut down while Lum &amp; Co. are making a movie, Lum loses her horns-and her powers! Thus begins the strangest and most lyrical of the Urusei Yatsura movies...

(Source: AniDB)