(June 1, 2016) The Art of The Angry Birds Movie. IDW Publishing, გვ. 9. „Maisel: "[W]e also talked about how to make the movie as big as possible. Mikael and I agreed back in 2011 that...we should do certain things to protect the movie...Let's not let the birds have arms and legs until the movie comes out. Let's not have CGI-grade animation until the movie comes out. These were things that, we knew, if we could protect those things, then the movie had a chance to be really special..."“
bbfc.co.uk
ANGRY BIRDS [2D]. British Board of Film Classification. ციტირების თარიღი: July 2, 2016.