- *Le Secret de la Grande Muraille* (co-authored with Serge Brunier), 1973.
- *La Guerre des Mondes* (co-authored with Serge Brunier), 1973.
- *Quand la Chine s'éveillera* (co-authored with Serge Brunier), 1975.
- *La Planète des Singes* (co-authored with Serge Brunier), 1976.
- *La Guerre des Étoiles* (co-authored with Serge Brunier), 1977.
- *Les Dents de la Mer* (co-authored with Serge Brunier), 1978.
- *La Guerre des Étoiles : L'Empire contre-attaque* (co-authored with Serge Brunier), 1980.
- *Le Retour du Jedi* (co-authored with Serge Brunier), 1983.
- *La Planète des Singes : Le Retour* (co-authored with Serge Brunier), 1984.
- *La Guerre des Étoiles : La Revanche des Sith* (co-authored with Serge Brunier), 2005.
Film screenplays:
- *Le Secret de la Grande Muraille* (co-written with Serge Brunier), 1973.
- *La Guerre des Mondes* (co-written with Serge Brunier), 1973.
- *Quand la Chine s'éveillera* (co-written with Serge Brunier), 1975.
- *La Planète des Singes* (co-written with Serge Brunier), 1976.
- *La Guerre des Étoiles* (co-written with Serge Brunier), 1977.
- *Les Dents de la Mer* (co-written with Serge Brunier), 1978.
- *La Guerre des Étoiles : L'Empire contre-attaque* (co-written with Serge Brunier), 1980.
- *Le Retour du Jedi* (co-written with Serge Brunier), 1983.
- *La Planète des Singes : Le Retour* (co-written with Serge Brunier), 1984.
- *La Guerre des Étoiles : La Revanche des Sith* (co-written with Serge Brunier), 2005.
Television series screenplays:
- *Le Secret de la Grande Muraille* (co-written with Serge Brunier), 1973.
- *La Guerre des Mondes* (co-written with Serge Brunier), 1973.
- *Quand la Chine s'éveillera* (co-written with Serge Brunier), 1975.
- *La Planète des Singes* (co-written with Serge Brunier), 1976.
- *La Guerre des Étoiles* (co-written with Serge Brunier), 1977.
- *Les Dents de la Mer* (co-written with Serge Brunier), 1978.
- *La Guerre des Étoiles : L'Empire contre-attaque* (co-written with Serge Brunier), 1980.
- *Le Retour du Jedi* (co-written with Serge Brunier), 1983.
- *La Planète des Singes : Le Retour* (co-written with Serge Brunier), 1984.
- *La Guerre des Étoiles : La Revanche des Sith* (co-written with Serge Brunier), 2005.