Plot
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.
Where to watch Asterix and the Big Fight?
Asterix and the Big Fight is an adventure movie featuring Henri Poirier and directed by Philippe Grimond.
Asterix and the Big Fight is currently streaming for free (ad-supported) on Freevee, Plex, Plex Player and Shout! Factory TV.