I m working on a prequel to an already existing series of movies. Writing prequels or sequels to works already produced is not the best way to approach selling you work. Generally, a producer will hire a writer to write a prequel or sequel after bouncing ideas around as to what might be a follow up to a successful venture. However, if your work is great, contact an agent or lawyer and see if they can get you a meeting with the producer who owns the rights to the project you ve written a prequel for. If you re unable to set up a meeting, then, you must look at your effort as a way to better your writing.
Most successful screenwriters write dozens of high-quality projects before selling the first one.
Writing is rewriting and learning the craft. Rest assured if you re not successful at selling the prequel you mention, you ve had a valuable experience learning the craft of writing. One of the many areas Scriptshrink focuses on in our screenplay coverage is the question of how good the characterization is and where it succeeds or fails. And it s an objective look. Whatever you decide to do, you don't want to embarrass yourself by sending out anything less than your best work to a producer, agent or development executive.