Ten Days' Wonder They Broke Every Commandment in the Book! Charles Van Horn, son of rich and powerful Théo Van Horn, calls upon his former teacher Paul Régis to help him solve the mystery of his recurring bouts of amnesia. Details Casts Galleries Posters Title Ten Days' Wonder Release Date 1971-12-01 Runtime 01 Hours 50 Minutes Genres Drama Mystery Crime Production Companies Euro International Films, Artédis, Les Films La Boétie Production Countries Italy, France Anthony Perkins... Charles Van Horn... Michel Piccoli... Paul Regis... Marlène Jobert... Hélène Van Horn... Orson Welles... Théo Van Horn... Guido Alberti... Ludovic Van Horn... Ermanno Casanova... One-Eyed Old Man... Mathilde Ceccarelli... Receptionist... Eric Frisdal... Charles enfant... Aline Mantovani... Hélène enfant... Corinne Koeningswarter... Hélène enfant... Tsilla Chelton... Mère Théo... Giovanni Sciuto... Prêteur... Vittorio Sanipoli... Commissaire... Fabienne Gaugloff... Petite fille du train... Silvana Blasi... La réceptionniste de l'h... Original Size (1920x1080) Original Size (1920x1080) Original Size (500x750) Original Size (500x750) Original Size (1000x1500) Original Size (1066x1600) Original Size (530x750)