When Casey comes up to talk to Brian his arms are by his sides but in the next scene he has a hand in his hair.
When Joe calls Brian on the radio he refers to the plane as November 1 2 1 Papa Papa
but the numbers on the plane shown flying are N160PD,
Brian complains "how does a dog own a dog?" when talking about Disney cartoon characters Pluto and Goofy. But Pluto was best known as Mickey Mouse's dog not Goofy's.