They changed too many things from the book for example in cabin fever frank was in a hotel not at home and greg and rowley got in trouble for vandalising the school not fo some random snow thing. And rodrick never even tried to find who vandalised.and the only reason they vandalised is because of the school fair or something in the book but in the movie there is no mention of it. And in the book greg never told anyone he did the vandalism. But i gotta say every thing was nice i really liked the movie but too many changes for he people who read the book.great movie in total ..................................
