You could match-cut the path of the footage in order to find the answer.
What did happen to Marissa Marcel?
IMMORTALITY will be an engaging trilogy by Sam Barlow, creator of Her Story. Make use of the cinematic capability of teleporting from scene the next to discover a trove of newly unearthed footage from the three lost films made by Marissa Marcel and traverse decades of cinematic history.
1968
Alan Fischer directs Ambrosio’s adaptation of M. G. Lewis’s Gothic book The Monk. The film stars a nebulous Marissa Marcel as the infamous Matilda.
1970
John Durick wrote Minsky, his dark thriller, having Marcel with Marcel in his mind. It is set at New York City, the film focuses on the demise of an accomplished artist. Marissa plays the role of the muse who is suspected of killing him.
1999
Marcel Durick Durick join forces again to celebrate Marcel’s final performance after many years of silence. Two of Everything, a thriller subversive about the double nature of a pop star and her role as a double, is named “Two of Everything”.
These movies were never released. They were believed to have been destroyed or lost. Until now.