There isn't one shred of realism in the entire movie. Not one...
Lots of not so subtle Left-wing prop jabs though. (Standard Follywood.)
Tom is himself, so if you are just looking for some ridiculously "Bad-a$$", laconic character, who can leap tall buildings in 1/2 a bound, while fighting 5 guys simultaneously, AND baking a cake... Then you might enjoy this, as long as you Fast Forward through all the idiotic set-up dialog. : P
Rosamund Pike's character (and Rosamund Pike) is the whiny progressive poster child for the Left.
Funded by the Chinese. Gee, what a surprise. Not.
Oh, and Tom; unfortunately lots of cops DO vote democrat.