This was definitely the funniest Harry Potter movie yet. If you go from watching the 1st movie to this one, you can see how much the acting and comedic timing has improved as the actors have grown up. However, as a big fan of the books, I was disappointed how much was changed. I understand that they had to leave out a lot from the book due to timing constraints, but there was a lot of new or changed scenes. I found myself questioning my friends in the theater, "did this happen in the book" or "i don't remember this". However despite this it was really enjoyable and the special effects were amazing.