Faster

Near the end of the movie, when Dwayne Johnson holds the religious guy at gunpoint near the lakeside, an eagle's cry is heard and Johnson looks up.

The bird seen is not an eagle, but a seagull.

When Driver is visiting his mother, she asks him a question about "the old man".

Driver replies "Yeah", then there's a scene POV edit and Driver is mouthing the same reply but no sound is heard.

When the killer is in a hotel, talking to Lily on the phone, you can see his iPhone several times.

The line displaying the duration of the call never changes, showing 0:03 minutes the whole time.

When Killer is in his car staking out the old man's apartment, you hear the sound of him cocking his semi auto pistol, which takes two hands.

As this takes place, you see him put the gun into his holster with one hand.

The front of the Chevelle that Driver is driving is a 1970, but the rear is a 1971 or 1972.

When Driver kills his first victim in a point blank range, the cubicle wall behind the victim is splattered with blood.

Later when Cop is watching the surveillance footage of Driver and the victim, the blood splatter on the wall is smaller.

At the beginning of the movie, as Driver is running away from prison to retrieve his vehicle, you can see police vehicles blocking the road to allow for uninterrupted filming in the background.

When Driver is holding the gun on the radio evangelist, between shots the bandage on his neck is loose, then it is secured, then it is loose again.