I've never seen the movies and don't own the game, but the character choosing makes me wonder if more theme integration and depth can be added to the chapters by adding pingolf-style challenges during them that are based on story events specific to your chosen character.
Attempting, passing, or failing chapter character challenges would award bonuses or penalties, or maybe just neutral if not attempted or failed, immediately and/or as you play further chapters. There could be multiplayer effects too.
For example, maybe you raise the sails during the chapter and avoid the bad situation for the character in that movie scene, or shoot a certain combo and get some immediate bonus plus an advantage in a future chapter, because you "found the magic item" or "avoided the trap" or whatever actually happened to that character in the movie scene.
To the degree those passes/fails can be used strategically as you progress through the game would add yet another layer of depth. Because there's lots of characters and lots of story, I think it would add immersion to focus on your character's part in each chapter, at least when that pairing suggests interesting challenge possibilities that are integrated with the story in appropriate ways.
Not every chapter a character was in would necessarily include an opportunity for such situations, but when the character and the story allow, and the challenges and consequences are theme-integrated, I think it would add value in a number of ways.
I'm talking about a lot of design and assets here, I realize......