I just noticed a typo in the tag
cowboy-behop - it should be
cowboy-bebop. I didn't find any link to signal that kind of errors though. Rare as they are, maybe it's not really needed.
Suggest an edit to all questions incorrectly tagged. For a large set do as you had did and post it on this meta. Those with 500 reputation and more should be able to review them in https://movies.stackexchange.com/review/suggested-edits
Since there is currently only one, it would be best to signal the original poster of the question to edit. It will most likely be faster than waiting for someone to see the suggestion in /review.
I removed my typo and the incorrect tag should hopefully be out of system in about a day as long as no one uses it.
Sorry about that.