The "rights" in this agreement are those granting Amazon the ability to share and monetize the screenplay itself. In other words it can publish it and monetize

The "rights" in this agreement are those granting Amazon the ability to share and monetize the screenplay itself. In other words it can publish it and monetize the screenplay as a literary work, which is essentially worthless (how much would you pay for the screenplay to Titanic?). It does NOT have the the ability to make a movie or TV show based on the screenplay.