Humphrey Bogart in a cast list at the trailer's end. Robinson's role is evocative of Duke Mantee in "The Petrified Forest" (1936), a Bogart leading man breakthrough the studio had originally earmarked for Robinson. The enormous success of "Casablanca" redefined Bogart's career. For the first time, Bogart could be cast successfully as both a tough, strong man and vulnerable love interest. Despite his elevated standing, he did not yet have a contractual right of script refusal. When he got weak scripts he simply dug in his heels and locked horns again with the front office, as he did on the film "Conflict"
Humphrey Bogart the dynamic of a mentor-student relationship to emerge. Quite contrary to Hollywood norm, their affair was Bogart's first with a leading lady. He was still married and his early meetings with Bacall were discreet and brief, their separations bridged by ardent love letters. The relationship made it much easier for the newcomer to make her first film, and Bogart did his best to put her at ease with jokes and quiet coaching. He let her steal scenes and even encouraged it. Howard Hawks, for his part, also did his best to boost her performance and highlight her role, and found