This is a spinoff film, and does not fit into the TV series' timeline. This can be seen where Jing still has her glasses, Rem Dogg is not an emo and Mitchel and Joe still have their old haircuts, but Cleo is in the class. In the TV series, Cleo only joins after these changes have happened.
Jack Whitehall's father was an extra in the film, but his scene was deleted because according to Whitehall, his dad overacted too much.
This is Jack Whitehall's first movie to appear on the big screens
The school used in the movie is not the original set used in the TV series. The movie filmed the school scenes in Penrice Academy in St Austell. The class room used was actually in Room E2 in the English block of the school.
The scenes set in Port Jago (actually Mevagissey) feature a crowd of extras pretending to be May day revelers, and a genuine set of Morris dancers from Bodmin: Trigg Morris Men.