the brothers in this film pick up the nicknames "the Saint" as they fight crime outside of the law, just as Simon Templar in this film gained the nickname "the Saint" for his extralegal battles with mobsters and corrupt officials
When Ivan Checkov introduces himself and says he's shutting down the bar, Murphy says, "Checkov? Well, this here's McCoy. We find a Spock, we got us an away team. "
The way the Dresden brothers enter the opening massacre with silenced pistols is based on the MacManus brothers tend to go around slaying other criminals.