Robert Young has an interesting idea in respond to a challenge by Mark Cuban: “How do you get people out of the house to see your movie without spending a fortune. How can you convince 5 million people to give up their weekend and go to a theater to see a specific movie without spending 60mm dollars.”
Whenever anyone goes to a movie theatre, they end up with a ticket stub. I would propose that you create a program/system to make those ticket stubs into currency essentially a coupon that can be passed around, traded, bought/sold, etc.
Allow me to illustrate with a hypothetical. Lets assume I went to see The Pirates of the Caribbean on opening day and I paid $8.00 for my ticket. I leave with a ticket stub that has been date/time-stamped. Then sometime during the following week, I run into my friend Sarah at Starbucks.
During the course of our conversation, I tell her that I had seen Pirates and recommend that she should see also it. As a friendly gesture, I pull out my wallet and give her my ticket stub. Sarah decides to go see the movie the following weekend, and since exactly one week has passed since my ticket stub was stamped, she is entitled to receive a $1.00 discount. Now, had she waited two weeks to see the movie, she would have received a $2.00 discount.