There is also something like youtube.com/boxoffice which youtube launched for showing full length bollywood movies. Youtube also partners with major production companies and they too can upload full length videos.
Depends if the filmmaker is the one uploading the movie, as I have been in the past!
YouTube lifted their limits on videos for some users: http://youtube-global.blogspot.com/2010/12/up-up-and-away-lo...
"Starting today, we’ll begin allowing selected users with a history of complying with the YouTube Community Guidelines and our copyright rules to upload videos that are longer than 15 minutes."
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"This launch has been made possible in part by the continued advances in our state-of-the-art Content ID system, as well as our other powerful tools for copyright owners. Over 1000 global partners use Content ID to manage their content on YouTube, including every major U.S. movie studio and music label. We remain as dedicated as ever to building and improving the most sophisticated technology in the world to help copyright owners protect their rights. "