Other mistake: When Spike is strolling through the city, at some point he walks by one of those posts pointing to various directions. One of the signs is written in cyrillic characters and, below, we can read the "English" translation: Ruccian Town.
Cowboy Bebop: The Movie (2001)
1 mistake - chronological order
Directed by: Hiroyuki Okiura, Shinichiro Watanabe, Tensai Okamura, Yoshiyuki Takei
Starring: Steve Blum, Megumi Hayashibara, Koichi Yamadera, Beau Billingslea, Melissa Fahn, Nicholas Guest, Aoi Tada, Unsho Ishizuka
Old Woman: He called you a cowboy. What did he mean? What are you?
Spike: Just a humble bounty hunter, ma'am.
Trivia: The actors who play the roles of the main characters are credited by their real names in the film credits, as opposed to their "stage" names which are normally used to credit them in the TV show.