Complex sentence: The Prague Trials were dramatised in the 1970 movie "L'Aveu" (the Confession) directed by Costa-Gavras and starring Yves Montand and Simone Signoret and based on the book by Artur London who was a survivor of the trials.
Split into simpler sentences: The Prague Trials were dramatised in the 1970 movie "L'Aveu" (the Confession) directed by Costa-Gavras and starring Yves Montand and Simone Signoret. The film was based on the book of the same name by Artur London who was a survivor of the trials.