I second footyfan...

actually after bit research i found out BIG Production houses are actually releasing their OLD movies online now ...
not by some guys who owns DVD or VCD.
Subash Ghai, Eros, Rajshri are some examples...
Also Yash Raj is showing movies online in youtube but you need to pay...

I checked with http://www.HitThiHitHai.com too, they are actually not streaming from their server, its YOUTUBE video that was shared by Big production houses actually... read their disclaimer... i found it there...

So, yes in this Internet where piracy is rampant there still exists some websites which are legally showing movies...