Quicktime
From Jon's Wiki
Apple are a shower of bastards who don't want you to download their trailers. Here's how to do it anyway:
wget -U "QuickTime/7.6.2 (qtver=7.6.2;os=Windows NT 5.1Service Pack 3)" \ http://movies.apple.com/movies/independent/capitalismalovestory/capitalismalovestory-tlr1_h1080p.mov
Right-click the 1080p images on their HD trailer pages, and add the extra "h" before the 1080p.mov