Mellow Co. on Instagram: "The “Code 4” signal seen in the movie “End of Watch” is real. Jake Gyllenhaal’s character, Officer Brian Taylor, flashes the “Code 4” hand signal, which means “no further assistance needed” or “scene is clear”. This gesture is a legitimate police communication. In the movie, Gyllenhaal instinctively uses the signal to an actual LAPD helicopter that was checking in on the South Los Angeles shoot, adding a layer of authenticity to the scene. Original: End of Watch (2012)