Why do so many critics and audiences call it "realistic"?
Doesn't it just amaze you how this, even ironic but still, comic book like super hero-esque action comedy with some fantasy touches added to it, considered by many to be "realistic", especially with several touches of this man killing tons of heavily armed bad guys and complete with comic sketches like "Kaboom" among others, or his getting away easily with beating up people in public with dozens of witnesses, how in the world, no matter how good this movie is, is it actually "realistic"?
The greatest trick the Devil has ever pulled was convincing the world he didn't exist!