Confident, But Wrong
If someone’s knowledge and beliefs are based on a movie that was produced by Disney, then it is safe to assume that they are incorrect about the majority of the subjects that they discuss. Confident in oneself, but lacking in accuracy. When discussing mythology, this is something that resounds as an especially true statement.
Reading a book is the best way to get information that is only marginally off about the past, so you should do it if you are serious about your quest to learn more. It is probably not a good idea to put your faith in a movie if you want to avoid the appearance of being an idiot because of your decision.