Near the end of the credits, there is a special message that reads "Heartfelt thanks to the talented artists who worked on Shrek the past decade".
The end credits feature a montage of clips from the previous three Shrek films.
All 4 Shrek film were released in May.
Just before the end credits, it is revealed that this was just one of a number of stories from Shrek's library.
In the end credits, starting with the full cast listing, the categories of credits are accompanied by illustrations representing these categories.