Trivia

Edouard Baer (who plays Astérix in this film) has previously appeared in Asterix & Obelix: Mission Cleopatra (2002), as Otis.

Gérard Depardieu (Obélix) is the only actor to have portrayed his character in all four films.

Based on René Goscinny and Albert Uderzo's "Asterix in Britain" and "Asterix and the Normans", both published in 1966.

The sentences that are told to a girl in one of the first scene of the movie by Goudourix to a woman are from a song by Jacques Brel entitled "Ne me quitte pas" -"Do not leave me"- a very famous french song: "Où l'amour sera loi, où l'amour sera roi" -"Where love will be the law, where love will be the king"-.

The "Taylor & Rich" store sign in Londinium is inspired by the phrase "My tailor is rich" ("Mon tailleur est riche"), the first line learned with the Assimil English lessons.