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
According to The Wimpy Kid Movie Diary, right after shooting the scene at Heather Hills's Sweet Sixteen party, in which Heather attempts to assault Rodrick with his mic stand after his bad musical act, and accidentally breaks the chocolate fountain, dousing herself and her friend Madison in melted chocolate, there was a break for lunch, so Melissa Roxburgh (Heather) and Elise Gatien (Madison) had to eat their food while still covered in chocolate.
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.