This film had so much promise.To be honest,I had never even heard of it but the story line was so promising. The element of person or persons trapped underground has been told in many films but The Blockhouse(1973),although starting off well enough just halted to a crawl.Peter Sellers is great but this film was so slow and painful to watch.I rated it 1 out of 10 because there wasn't a 0 out of ten rating.Shame,because I normally like films of this kind.