During the filming of “Asterix at the Olympic Games”, Alain Delon had strained relations with Thomas Langmann, director and producer of the film, to the point of threatening to “kill” him.

Asterix has often been criticized at the Olympic Games for being just a succession of stars on the screen without a solid red line of script. These critics were unaware that behind the scenes some of these stars were having disputes with members of the team. This was particularly the case for Alain Delon, who played Caesar.
An article by BFM recently returned to the chaotic shooting of this third Asterix shot in live action and in particular on the tensions between Alain Delon and Thomas Langmann, co-director and co-producer.
While filming is underway, Langmann shows images of the film at a convention organized by TF1, the co-producing channel of the feature film. It comes back to the ears of Alain Delon, who is furious. Indeed, the actor has a clause in his contract stipulating that no image of Asterix can be shown without his agreement.

Pathé Distribution Alain Delon is Julius Caesar
Delon calls Langmann and tells him: “I will kill you !” The tea towel burns between the two men, to the point that the actor, superstar, forbids the stage to his actor on stage for three days! Once his scenes were over and after a while, the actor would have reconciled with Langmann, without the article detailing when or how.
In addition to these behind-the-scenes worries, there will be post-production issues. From 2:40 possible, the film goes to 1:50 at the request of the distribution. At the French box office, Asterix at the Olympic Games will bring together 6.81 million curious, having cost 78 million euros (a record for French cinema at the time) including 10 millions reserved for the main cast.

See the slideshow Slideshow Asterix: the best adaptations according to the spectators 14 photos