Simplify the following text for a Grade 9 native English-speaking person.
Original: Ultimately this came down on the shoulders of Boris Shumyatsky , `` executive producer '' of Soviet film since 1932 , who in early 1938 was denounced , arrested , tried and convicted as a traitor , and shot .
Simplified: In the end , this made Boris Shumyatsky , `` executive producer '' of Soviet film since 1932 to blame . In early 1938 , he was denounced , arrested , tried and convicted as a traitor , and shot .