Refers to screenwriting contracts that promise the writer a share of the profits after distribution. General opinion is the writer never sees a dime of this because production expenses are fungible. If you get this far, hire a reputable entertainment lawyer or instruct your agent to negotiate front-end pay only. Or, if it’s an indie with a modest budget and you prefer proceeding pro se, stick to your position and decline back-end deals in favor of credit and higher up-front pay. See Indie.