- Country: France, Italy
- Genres: Crime, Thriller
- Release: 1969-05-01
- Director: Adriano Bolzoni
- Writers: Adriano Bolzoni , Giustino Caporale , Marco Masi , Sinpri-Guy Pekol
- Language: Italian
- Stars: Peter Lawford , Françoise Prévost , Paolo Turco , Tery Hare , Corinne Fontaine , Carla Romanelli , Paolo Carlini , Germano Longo , Alicia Brandet , Giuseppe Castellano
- Runtime: 91 min
- Awards: N/A
- AKA: Syndens barikader (Norway) , Quarta parete (Italy) , Barreras de pecado (Spain) , Syndens barrikader (Sweden) , Quarta parete , Fourth Wall (Netherlands the) , Walls of Sin (United Kingdom) , Zidovi greha (Slovenia) , La limite du péché (France, French Republic) , The Fourth Wall , La limite du péché (Belgium) , The Fourth Wall (United States of America) , Ta teihi tis amartias (Greece) , De grens van de zonde (Belgium) , Aşk ve Ecel (Turkey) , The Fourth Wall (United Kingdom)
- Plot: Marco Baroni spent four years in an English school. When he returns to Rome, the behavior of his family members finds him unprepared: his father, mother and sister Marzia have changed so much that they have not been recognized. He...
- IMDB:tt0188167
The Fourth Wall Cast · · · ALL
Adriano Bolzoni
Director
Peter Lawford
Papá Baroni
Françoise Prévost
Cristiana
Paolo Turco
Marco Baroni
Tery Hare
Marzia Baroni
Carla Romanelli
Nicoletta
Bernard Blier
Andrea Brusa
Don Backy
Jumpy
Stefano Conti
Umberto D’Orsi
Franco Giacobini
Janine Hendy