OKAY Harry Potter fans I need your help with a couple of questions? Again!!?

Okay in the prisner of azkaban Harry and hermione are in the forest and lupin ( the warewolf) is attackng them. Buckbeak the hippogriff comes and protects them. In the same movie when Harry goes to find peter pettigrew cause he sees him on the map snape catches Harry and confies the map bu lupin finds both of them in the corridors and tells snape he would take care of it. Afterall lupin was one of them who invented the map. Fred and George invent puking pasties and they pretty much sell them too whoever will buy them. In the movie they show Collin creevy eating them. Lucius says somehing like famous Harry potter cam even go to the book store wihout making the front page. That's in the book. Hope I helped:).