A compliment and admission of admiration
Whenever Hollywood or the American movie industry as a whole make their version of a foreign film, it's their way of admitting that they were really impressed with it.
It's like they were saying to themselves " Damn! I wish we could have thought of
this one before. "
And yes it does show quite clearly also their lack of originality in copying someone else's work, as opposed to coming up with something more innovative.
In reference to Quarantine it was a copycat version of Rec but still it was a good/entertaining film.
I really can't knock it down too much and I did enjoy watching this a lot.
Also I enjoyed the sequel almost as much.
Why did the chicken cross the road?
Answer: To get away from Col.Sanders.
H.L.