Looks like you've just found the Holy Land!.
Though we only see her seat meat silhouetted against a window, her full frontal flappers and fur take center stage in several shots, and we get some nice long looks at her lactoids as she and her new lover get it on in a seedy hotel room.
She also directed films like Love Life, was a member of the jury at the Berlin International Film Festival, etc.
There they meet her son David, and after the woman dies, Lena's mother leaves to return to Germany, leaving David and Lena to discover that Lena's mother knew David's mother, and may have been responsible for her murder.
Maria starred in Deutschland 83 in 2015.
When her mother comes to visit, they find a nearly dead woman on the floor of the hotel and bring her to the hospital.