You might know the story and maybe even the dialogue from the movie Up by heart. Here are some things you couldn’t know just from watching it, because they are all about how the film was made. Did you know there was a real-life Russell (besides the cosplayer we are familiar with)?
14. Russell was heavily influenced by story artist Peter Sohn.
15. To make Russell sound more natural, voice actor Jordan Nagai would sometimes run around before saying a line.
16. Several of the drawings from Ellie’s Adventure Book were drawn by the director’s daughter.
But there’s lots more trivia and tidbits about the making of Up in a list at Buzzfeed, including some original plot points that were changed before filming started.