There are a few more things to keep in mind.

1. A lot fewer people share movies the music

2. Probably just as many people are trying to download movies as they are music. (you do the math) Uploadslots available/people waiting in line

3. If you don't share movies yourself (I am not saying that you don't) there is a good chance that they kill their upload to you or even block your IP (worse case scenario)

4. All users are not on all the time.

5. DVD-movie (do you mean .vob file or DVDrip?) If it is .vob files youre after there is a very good chance that only 1 user is sharing this file + there go at least 3 1048 MB files to each movie + a smaller one (you should maybe try the chat and ask if you can direct connect)

Hope this gives you some clue what you're up against