Why is that BUG so big? Did that BUG just set something on fire? Why are we writing BUG in all caps? Because when it’s a William Castle production, that’s how we roll! Or crawl! Produced and co-written by Castle, this unnerving shocker set in the California dustbowl follows scientist a (Bradford Dillman) as he tries to stamp out a plague of huge, weird, arson-prone cockroaches birthed from an earthquake. With Joanna Miles, Patricia McCormack; directed by Jeannot Szwarc. 100 min. Widescreen (Enhanced); Soundtrack: English Dolby Digital mono.