Fan Casting Shrek the Third (2009)

Shrek and Princess Fiona are to succeed the dying King Harold, but Shrek's attempts to serve as the Regent during the King's medical leave end in disaster. He insists that an ogre as king is not ideal and that there must be someone else. Before he dies, Harold tells Shrek of another heir: his nephew and Fiona's cousin, Arthur "Artie" Pendragon. Meanwhile, Prince Charming vows to become King of Far Far Away and avenge the death of his mother, the Fairy Godmother. Charming goes to the Poison Apple tavern and persuades fairy tale villains to fight for their "happily ever after". Shrek, Donkey, and Puss in Boots set out to retrieve Artie. As they sail away, Fiona reveals to Shrek that she is pregnant, much to Shrek's horror as he does not believe himself capable of raising children. The trio journey to Worcestershire Academy, an elite magical boarding school, where they discover Artie is a scrawny, 16-year-old underachiever. At the school pep rally, Shrek tells Artie he has been chosen to be king of Far Far Away. Artie is excited until Donkey and Puss inadvertently frighten him by discussing the king's responsibilities. Losing confidence, Artie tries to take control of the ship and steer it back to Worcestershire; following a scuffle with Shrek, the ship crashes on a remote island where they encounter Artie's retired wizard teacher, Merlin.