If this was addressed in the movie or series I missed it...Did George have his name legally changed from Sam to George? It must be his legal name during the series else it would surely have come up. And if it did, then I missed it. I miss details a lot.
I also notice that he has a "I (heart) San Francisco" mug at the precinct during the series, I don't remember if he had it in the movie, but that's cute.