I can't make that claim entirely divorced of hedging: it would be another half-decade until he appeared in The Fly , the first film in the almost uninterrupted run of horror movies he'd appear in throughout the second half of his career (we could maybe stretch a point and call the starting point of this run his 1957 appearance as a non-threatening Satan in the horror-free The Story of Mankind ), and he'd already appeared in three horror-ish films in 1939 and '40, Tower of London , The Invisible Man Returns , and The House of the Seven Gables .