For most of the franchise's history, movies were considered separate from the main story (non-canon). This changed with the modern era; Battle of Gods and Resurrection 'F' were integrated into the anime. The two most recent films, Super: Broly and Super: Super Hero , are fully canon and continue the story following the "Tournament of Power".
Note: There is also – a 2017 Universal Studios Japan attraction film.
Most of these are available on:
(2011): A "what-if" sequel to the original Bardock special. Canon vs. Non-Canon
These films are canonical and directly tie into the Super anime/manga.