To make one movie, writers must create an entire world of characters to interact with the protagonist. The minor characters can be as rich and interesting as the main cast, but we don't get to know them very well. Some of these characters are intriguing enough to carry their own movie, but it rarely happens. Be honest, you'd go see a movie based on the sea turtles from Finding Nemo, wouldn't you?
One of the most beloved characters in Disney’s Finding Nemo is Crush. He is a sea turtle who speaks like a surfer. He helps Marlin and Dory get to Sydney Harbor so that they can find and rescue Nemo. He gives Marlin the nickname, The Jellyman and he calls Dory, Little Blue. He takes the pair on a fantastic ride along the East Australian Current. He also has a son named Squirt and a group of other turtles that he travels with. It would have been great to see Crush get his own spinoff so that we can see what his family is like and what it is like to travel along the East Australian Current. Crush is very funny and very lovable. Fans fell in love with him in Finding Nemo, and they would love him even more if he had his own movie.
Read about other side characters who should be in their own movies at Unreality.