Original film producer Sean S. Cunningham claims that Miller wrote the screenplay for "Friday the 13th" as a work-made-for-hire for the Manny Company. Under copyright law, an employer is considered the statutory author and copyright holder if a work is made in the employee's scope of employment. If, as Cunningham contends, Miller wrote the screenplay as the Manny Company's employee, he never held a copyright to the screenplay to transfer or reclaim. A lawsuit seeking the parties' declaration of rights was filed in a federal court in Connecticut. On September 28, 2018, Miller won the rights against Cunningham. Cunningham appealed, the appeal was withdrawn due to technical reasons, and then reinstated by the deadline of April 12 following year.