Known for capturing an entire film in a single defining image, Gold kept Bogart's and Berman's characters separate to avoid giving away the romance. According to The Hollywood Reporter, "Warner Bros. wanted more excitement, so [Gold] added the gun (which Rick used briefly at the end). Gold did all the lettering by hand using a flat-pencil technique."
Also by Bill Gold
Left to right:
"Dirty Harry" movie poster, 1971, Gold’s Wharholian images of film star Clint Eastwood’s raising a gun emphasizes the violent theme of the first of the "Dirty Harry" films. Gold designed the posters for the movie’s sequels--and all of Eastwood’s subsequent movies—until the designer’s retirement in 2004.
TM & (c) Warner Bros. Entertainment Inc.