Pinocchio: I'm not a puppet, I'm a real boy!
Captain of Guards: Five shillings for the possessed toy. Take it away.
Sometimes Shrek's front door opens outwards, at other times inwards, yet it can't be "two-way" because whenever it closes, it slams against the frame.
The scene where Fiona impressed Shrek with her loud burp was added to the film courtesy of Cameron Diaz. Diaz gave such a loud belch after drinking some Coke during recording, which gave the movie makers the idea for the gag.