Maybe but the problem is your computer, or someone elses could not read the movie right also it could have to potential to get leaked or something could happen while you watching, etc.
Actually, they have devised a way to send movies straight to your television. I was notified of this in 2008, however, since I understand nothing of the technology, I cannot explain it to you. You could probably go to the Netflix sight and find the information. Pretty cool, yes?