Report Abuse. Screenplays sell for anywhere between $0 and $6,000,000. It has absolutely nothing at all to do with whatever 'rating' a movie got on IMDb, as that's related to the FILM that was made after the screenplay was sold.his Site Might Help You. RE: how much do screenplays sell for? If I had made a screenplay that was so good it showed in the cinema or got a rating of 7+ on imdb how much could a screenplay sell for? I just wondering cos im really intersted in this sort of job its in my interest.