When the druid Panoramix is attacked by some roman soldiers, Obelix drives them away by throwing a menhir on them - which accidentally hits Panoramix. After this the druid has lost his memory and can not remember the formula of his magic potions, especially the one which gives superhuman strength.
Info about Asterix and the Big Fight
Studio(s): Gaumont, StudioCanal
Originally Released: Oct 12, 1989
Production Countries: France, Germany
Asterix and the Big Fight: Where to Watch Online?
Currently you are able to watch "Asterix and the Big Fight" streaming on Shout! Factory TV (Via Amazon Prime or for free with ads on Shout! Factory TV, Amazon Freevee, Plex.