Shock Waves An overachieving horror from the 70s - director Ken Wiederhorn makes an effective and scary zombie film - a lot of it in broad daylight - and it's rated PG. And he even got John Carradine, Peter Cushing and Brooke Adams for it, and used them well.   9/08/02 Posted by DVD Savant at September 08, 2002 09:08 AM