'' The Blockhouse '' is a 1973 film , based on a 1955 novel by Jean-Paul Clébert . It was directed by Clive Rees and starred Peter Sellers , in a rare dramatic performance , and Charles Aznavour . It was filmed entirely in Guernsey in the Channel Islands and was entered into the 23rd Berlin International Film Festival
23rd Berlin International Film Festival
23rd Berlin International Film Festival
The Blockhouse