In Murder Party, the French Télévisions film adaptation of Agatha Christie's A Murder is Announced, for the Les Petits Meurtres d'Agatha Christie TV series, Mmle Greenblat is the parallel of the character Miss Hinchcliffe in the original novel. Her role in the adaptation is quite faithful to the original. She lives with her friend Henriette Parisot, the Murgatroyd parallel and they are neighbours of the ranch kept by Leticia Salvan. Greenblat is also present in Leticia's living room during the staged "murder party" and a witness to the killing of Kurt Wengen.
In this adaptation, Greenblat lives on a farm but is not a farmer. She is a primary school teacher. In a sideplot, she helps Marlène with her French grammar and spelling after she is reprimanded by commissaire Laurence for her shortcomings as a secretary. Greenblat is not married and openly admits to Laurence that she is a homosexual. There is a suggestion that her willingness to tutor Marlène is motivated by her interest in her.
It is likely that she collects stamps, as she can bee seen sitting in bed with an album containing stamps.
In this adaptation also, her friend Henriette had intercepted a letter from Nadine Combet for Leticia Sanvan. Henriette had left it on the bed. After Henriette was attacked and sent off to the hospital, Greenblat went to pack some things for her and found the letter on the bed. Opening it, she read Nadine telling Leticia that her children Marcel and Antoinette were in Argentina and planned to visit the following year. She immediately alerted Laurence to the fact that the two persons at the ranch were therefore imposters. At the end of the episode, when Leticia admitted trying to kill Henriette, Greenblat (in a scene common to various adaptations) attacked Leticia and knocked her to the ground.
The character of Greenblat was played by Juliette Plumecocq-Mech.