Revealing mistake: Obvious CGI flames were used during the science lab fire, because when the teacher knocks over the Bunsen burner onto the flammable liquids, parts of the workbench instantly catch fire that were nowhere near the liquids.
Revealing mistake: The shout where the paedophile's car gets petrol-bombed was done using CGI. The flames are not consistent between shots and there is no smoke whatsoever.
