This is a brilliant idea! Since we expect only a handful of leaks, each screener could contain lets say around 100 bounties of $10, with 200 bounties total. Then the first leak would be worth $1000, the second leak $500 (expected value) etc, and the studio only needs to pony up $2000 in total. We are guaranteed to be able to identify the first leak, I'm not sure if we can identify further leaks (there is probably some kind of trade-off between payout for the first leak, total amount of bounties, and probability of being able to identify further leaks, but the mathematics of this is probably not trivial.