Producers are usually let off the hook and do not have to pay the talent if the contract is breached via:
The producer's obligation is strictly to pay the agreed-upon amount. They are not legally obligated to actually "play" (use) the talent in the final production. (Dub) 2 : Pay or Play
Lead actors and directors often turn down other lucrative jobs to hold their schedule open for a project. This clause ensures they do not lose money if the project falls through. Producers are usually let off the hook and