 SPOILER: Various parallels to _Heat (1995)_ (qv) throughout the  film. They include a stand off between the two main characters at  the end, the use of subways and airports at the start/end, the  referral to the shooting patterns as "double tap" entry wounds, the  main characters are loners, gunshots are louder and more realistic  that conventional Hollywood action films, the first crime committed  does not go accordingly to plan, aerial camera shots of LA at night  time and the use of a police helicopter.