Yes, Alain Robbe-Grillet was also a filmmaker. He is best known for his novels, but he also directed several films, including Last Year at Marienbad (1961), L'Immortelle (1963), and The Man Who Lies (1968). His films are often characterized by their use of symbolism and allegory, and their exploration of themes such as memory, identity, and reality.
Wandering in Robbe-Grillet's Labyrinth: A Quiz on the Works of the Renowned French Writer and Filmmaker