 Roger Corman (qv) told Peter Bogdanovich (qv) he could make any  film he wanted to, with two conditions: he had to use stock footage  from _Terror, The (1963)_ (qv), and he had to hire  Boris Karloff (qv) for two days (Karloff was under contract and  owed Corman those two days). Karloff was so impressed with the  script that he refused pay for any shooting time over his contracted  two days.