Asterix & Obelix have both become fixtures of France's pop-culture scene (imagine if Bugs Bunny and Superman were in the same package via Asterix), and this film was the first foray into the world of cinema for the Gauls fighting the 'Crazy Romans' of 50 B. C. And this film's somewhat troubled production and Goscinny-Uderzo's disapproval of the final print didn't help matters much, but it DID help guarantee that all subsequent Asterix films were of better quality in terms of the animation and writing.
Asterix the Gaul is relevant to French animation history, but it doesn't prove itself the strongest introduction to the medium exactly. The years since this film came out kind of proves the behind-the-scenes dramas definitely changed the trajectory for the franchise going forward, and it did change things for the best. And it's good that it did: because the Asterix stories are good comical action-adventures giving fun twists that on European history.
Honestly this film is a starting point for an iconic character, but as a first impression kind of thing it does leave some things to be desired, and the following films are more fun because of the more refined takes on the mythos of the characters and much more fluid animation. Sure this one has that awkward 1960s-animation energy that was well-defined on television circa Hannah-Barbera stuff and the infamous Beatles cartoon series, but for cinema Disney made this stuff seem downright amateurish and cheap for silver screens.
6/10 IMDbs. 3/5 stars. Watchable stuff but definitely a flawed 'classic'. For fans of Asterix it's incredibly important, but for casuals it's an easy skip.