The stuff that a writer's dreams are made of, Enigma! During an auction of a writer's work, when bidding is hot amongst multiple publishers/studios, one publisher/studio will take a deep breath and offer a phenomenal amount of up-front cash to effectively end the auction. It goes something like this:
Studio #1 -- I'll bid $50,000, paid in thirds, plus you keep print rights.
Studio #2 -- I'll bid $55,000, paid in half, plus you keep print AND get to approve the director.
Studio #3 -- I'll bid $60,000, paid up front, but that's for everything.
Studio #1 -- Okay, I'll go with $60,000, paid in thirds plus what #2 said.
Studio #3 -- Y'know what? I'm tired of playing games. I'll bid $250,000 up front, plus a $50,000 bonus if it gets nominated for an award.
Studio #1 -- Pfft! I'm out.
Studio #2 -- Yikes! Too rich for my blood.
Publisher #3 has accomplished a pre-empted purchase. Make sense?