User blog comment:Sexynaruto12/Bleach: memories of nobody/@comment-3344282-20110208150131

The movies are not part of the canonical timeline of the manga. You can think of them as "what if" stories occuring in an alternate universe. While I think they wouldn´t present drastic stuff like killing main characters, pretty much anything else can happen. Like in filler arcs which are only in the anime, but not in the manga.