If you want to download freely wav sounds of movies
The next site has a small serie of wav sounds (well in fact it is more mp3, but it doesn't matter since we have converters on our website, hu !) that has a sound samples of movies.
Movie sounds central
You can find here the famous, "go ahead punk, make my day !" and the probably more famous "i'll be back" from terminator
Or you have the very clean (cleaner as us hu !) http://www.hollywoodwavs.com
These sites have enough movies in my opinion, and since all movies are not cult, i'll only put these 2 links. If you are looking for a more precise thing, use your favorite search engine and use the name of the movie you are looking for in your search request.
For french mvoies, you have a small list here:
http://jc.bellamy.free.fr/fr/telechargements.html
A small serie of wav of movies.