L'Immortelle is a 1963 international co-produced drama film[1] directed by Alain Robbe-Grillet, his first feature after the worldwide success of Last Year at Marienbad which he wrote.

Set in Istanbul, it tells the story of a withdrawn man falling hopelessly in love with an attractive and sexy woman who will not reveal her identity.

Alain Robbe-Grillet, who was one of the most successful screenwriters of the French New Wave, longed to direct a feature film, but no offers of backing were forthcoming.

L'Immortelle and the other films were also included in the French DVD box set Alain Robbe-Grillet - Récits cinématographiques, released in France in 2013.

Dino de Laurentiis acquired the Italian distribution rights after production, and officially, in the film's credits, L'Immortelle is listed as a French/Italian co-production, although it was shot entirely in and around Istanbul, with a mostly Turkish crew.