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Why Not! was released on December 21, 1977 but we couldn't find it on any streaming service yet. Rights can change — try again later.
Get the app to be notifiedCast · Directed by Coline Serreau
Sami Frey
Fernand Bulard
Christine Murillo
Alexa, dite Alex
Mario Gonzales
Louis
Nicole Jamet
Sylvie
Michel Aumont
L'inspecteur Bricat
Mathé Souverbie
La mère de Sylvie
Alain Salomon
Roger
Jacques Rispal
Le père de Louis
Florence Brière
Luce Fabiole
Peau de Chagrin
Nicolas Serreau
Le serveur dans la boîte
Marie-Thérèse Saussure
Madame Picaud
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Why Not! — streaming FAQ
Which OTT platform streams Why Not!?
Why Not! isn't streaming anywhere in United States yet.
Is Why Not! on Netflix?
No, Why Not! is not on Netflix in United States as of August 2026.
Is Why Not! on Amazon Prime Video?
No, Why Not! isn't on Amazon Prime Video in United States right now.
Where can I watch Why Not! for free?
Why Not! isn't streaming in United States yet, so there's no way to watch it free at the moment.
What is the OTT release date for Why Not!?
Why Not! hasn't started streaming in United States yet. Based on the typical 6–8 week theatrical-to-streaming window, we estimate it will arrive around February 8, 1978. This is a prediction, not a confirmed date.