Hello everyone. Very new to screenwriting but I've done a lot of stage plays. My question relates to an original screenplay I wrote and which actually got made, albeit in a mangled form. It was so low-budget the producers decided not to pay me for the script and used what would have been my fee to finish making the film, swearing they would pay me once it was released. They didn't ask permission. They just did it. I've never received a penny. even after three years. Now, given they ruined my script with their changes and I wasn't paid, I'm wondering whether the entire story, characters etc are now mine to do as I like. I would really like to adapt my script into a novel and. perhaps one day, have someone else go through the process of making a film out of it. Does anyone know where I stand with this or can recommend a resource where I can find out? Thank you.