David D'Amato, who is filed three lawsuits relating to the movie and claims it portrayed him as "deviant," interrupted a Q&A, telling Reeve, "You need to get criminal counsel," and threatening more legal proceedings, reported New York Post.
Kevin Clarke, an associate of D'Amato's, further confronted Reeve in the theatre's lobby, calling him a "liar," and saying the director used information Clarke was told would be "off the record."
D'Amato also filed a suit against his own stepmother, claiming she defames him in the film.