In regard to the most cinematically challenging or appealing movie

[dragondor1709 at yahoo.com]

Please set me right if I am wrong. I have only read the books once 
each this summer and I do not own one. So I may be mixing things up. 
But I would think,that the last of the books,I believe where the 
other schools come for the challenge and in which Voldemort confronts 
Harry. To me that would be the toughest in length and in content.
 The challenges to the ones whose names were drawn. The underwater 
sequences etc. That is book 4 isn't it? Chris Also what about finding 
a giantess to match Hagrid?