Factual error: After breaking out of prison, Paddington contacts the Browns using his 50p coin to make the phone call. It is actually 60p to make a public phone box call in the UK.
Factual error: While Ferdinand and the bulls are running free in Madrid they pass by the Puerta de Alcalá monument with a set of three columns and a door in the middle. The drawing is actually missing two huge blocks with 2 doors on each side.
Factual error: In the end credits, some of the vintage advertisements have 770 area code phone numbers, which while valid for Atlanta, Georgia and surrounding areas now, it didn't exist until 1995 when it was assigned. The numbers should have had either a 404 or 912 area code since those 2 area codes covered all of Georgia until 1992 when area code 706 was implemented.