Astèrix i el cop de menhir was released in the year 1989。Astèrix i el cop de menhir is also called as Astérix et le coup du menhir, Asterix och Bautastensmällen, Asterix ja suuri taistelu, Asterix en de knallende ketel, Asterix e la grande guerra, Asterix and the Big Fight, Asterix - Operation Hinkelstein, Astérix y el golpe del menhir。

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.