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"
KL Gangster 2 Malik and Jai would later continue in the first film, KL Gangster. The film was shot began 1 December 2011 and choose several locations such as Kuala Lumpur, Klang Valley and Batu Gajah, Perak as the filming location. The film finally got the Malaysian actor, Rosyam Nor after Syamsul Yusof failed to reach him for KL Gangster due to his hectic work schedule. According to Syamsul, he does want Rosyam to be casted in the action movie because the character is specially created for him. The last time Rosyam acted in action films via Bade Hj. Azmi's 2006 film, Castello.