"Asterix and the Big Fight is a 1989 animated movie directed by Philippe Grimond and produced in France by Yannick Piel as Astérix et le coup du menhir. It is based on the Asterix comic book series. The movie has a different plot from the book of the same name. It combines plot elements from Asterix and the Big Fight and Asterix and the Soothsayer. Interestingly, although there is plenty of fighting — as usual for an Asterix story — the actual fight that the story is named for is not part of the movie's plot. The novelization was titled "Operation Getafix" (the German translation of the film was Operation Hinkelstein, a hinkelstein being a menhir)."
(Above taken from here... WARNING: Link contains spoilers!).
Click here if you want to watch a clip from this movie (it appears to be the first part of the movie, actually). Yes, it's in English.
It wasn't as enjoyable as the other Asterix movies have been. Not because it wasn't a good movie... It was a good movie... But whoever did the translation for this one didn't get their facts right. Most of the names were wrong, it's meant to be "druid" not "wizard" and the potion is a "magic" potion, but they insist on calling it a "vitamin" potion for some reason. But, if you can ignore that - or if you didn't know any different - then you could easily enjoy this little movie!