That could be a valid idea for a startup, where movie people can sign up to sell 'virtual tickets' that provide users with the legal right to watch a movie no matter where they got it from. It could even be transferrable, identifiable tickets (... ahem, cryptocurrency, ahem).
Most copyright disclaimers allow that already ("without the expressed written consent of the copyright owner" etc).
There's UltraViolet, which is perhaps similar to what you're talking about (provided you own the content, you can in theory download/stream from any UltraViolet-enabled provider as long as they have that content)
Most copyright disclaimers allow that already ("without the expressed written consent of the copyright owner" etc).
Has anyone ever implemented this?