A sequel was in the works but cancelled when the actors who play the protagonists underwent a major growth spurt suddenly.
Robert Capron had to wear a wig because he had just gotten done acting as young Curly in The Three Stooges (2012) where he had his head shaved almost bald.
(Author Cameo) Jeff Kinney: As Mr. Hills
This is the first "Wimpy Kid" movie in the series that takes place during summer vacation, meaning, out of the few films made, only the first film and this one take place during the school year. The first film starts with the first day of school and ends with the last day, and 'Rodrick Rules' only takes place during school.
Thought to be the last of the "Diary of a Wimpy Kid" movies although the book series would continue. This was changed after a new cast was assembled for a new movie, Diary Of A Wimpy Kid: The Long Haul.