Crew or equipment visible: During long Steadicam shot in 1968 when they go to meet Derek Foreal, the assistant director can be seen on the left yelling, "Action".
Incorrectly regarded as goofs: George's mother is visible following the action from the kitchen when George and Mirtha are fighting. It was originally intended that she should be part of the scene but the long shots are not used and her presence seems incongruous. It is not a member of the crew.
Anachronisms: When the house is full of money, the twenty dollar bills are clearly from a much later issue.
Continuity: The sweat stains on George's shirt when he first meets Escobar.
Continuity: George and Escobar's relative positions during their first meeting.
Errors in geography: "Norman's Cay" is shown as hilly, yet it's in the Bahamas. The islands that comprise the Bahamas are flat.
Anachronisms: Kevin refers to the need for pot at Hampshire College in 1969. Hampshire College did not admit its first class until 1970.
Crew or equipment visible: When Tuna is driving the RV cross country, the crew truck is visible in the windshield.
Continuity: The man that leads them to their first Mexican marijuana connection has his hair in a pony tail. In the next shot when they are following him, his hair is loose.
Anachronisms: The clip that Mirtha was wearing in her hair at the end of the movie did not exist until the mid 1990s.
Crew or equipment visible: In the final drug bust, a crew member wearing a gold watch is seen behind the plastic.