Originally planned to be aired on French television but instead it was released as a theatrical feature film. It was made without the knowledge or involvement of Goscinny and Uderzo, and they were unable to stop the production and release of the film in time. Instead they ordered production halted on the sequel 'Asterix and the Golden Sickle', and worked with the production company, Belvision, on the next film 'Asterix and Cleopatra'.
Obelix is seen carrying an axe in his first appearance. It is never seen again. He is satisfied with helping Asterix eat just one boar between them. Obelix is only a peripheral character in the first album, and doesn't truly become Asterix's sidekick until the next album.
First appearance on the big screen of Astérix and Obélix.
When he is first introduced in the prologue, Caesar has a completely different look than he has in the rest of the series, including at the end of this album.
Cacofonix the bard plays and calls a dance, and at the end is seated at the table at the feast. Later albums established a running gag where he is never allowed to sing (except in Asterix and the Normans, The Mansions of the Gods and Asterix and the Magic Carpet), and is tied up and gagged at feasts to prevent this.