Both Ric Maddox and Matt Lasky are highly skilled and experienced stunt actors and they did all of their own stunts for the 2 minutes-long fight scene in the climax of the movie.
3 gallons of fake blood was used to create the fight at the end of the film.
The beauty salon that was used as the location for the barber shop had to be heavily re-decorated to look like a Russian-style barber shop.