The Blair Witch Project’s original cast ask for retroactive payments as reboot announced
If I remember right the deal the two directors agreed to was that they wouldn't make any real money until the film hit 10 or 20 million.
They were given that because the studio didn't think there was a chance in hell this hand held camera footage movie was going to make anywhere close to that. They just wanted to turn a profit
And they did to the tune of 250 million