Near the end of the film, when Carter is driving away in his truck, and Raymond is fighting him for the steering wheel, the gearshift is in the Park position.
In the scene where they are rattling off the names of comic books, "Marvel Mystery #1" is used. There is no Marvel Mystery Comics #1. It is actually "Marvel Comics #1". With issue number 2 the title changed to Marvel Mystery Comics.
In the closing scene Archie is standing with the Sagrada Familia (Cathedral) behind him. Then he turns to a girl to light her cigarette and the Sagrada Familia is still behind him, even though he is now facing in a different direction.
Archie: After all that had happened, life and the living of it seemed too fleeting to waste in one place or on arguing whether Superman was stronger than the Hulk.