She became part of another production company called Image Ten, which also included Romero and Karl Hardman, and put up $6,000 to film the Night of the Living Dead.
The cult classic film was formerly titled Night of the Flesh Eaters, but was changed due to a copyright issue.
The George A. Romero Foundation acknowledged Eastman’s passing in a statement, which read: “It is with great sadness that we can confirm the passing of Marilyn Eastman on 8/22/21.
“Please join us in wishing her family peace at this painful time. Godspeed, Marilyn.”
Eastman’s other acting credits include an episode of Perry Mason and a 1996 horror film called Santa Claws.