Asterix Versus Caesar (also known in France as Astérix et la surprise de César) is a 1985 French animated adventure comedy film, written by René Goscinny, Albert Uderzo and Pierre Tchernia, produced by Dargaud Films and Les Productions René Goscinny, and released in France originally in December 1985.

Seeking to cement the celebrations, Caesar orders Caius Fatuous, head of a prominent gladiator school, to provide him with a grand show.

Attempting to win her affection, Obelix becomes distraught when she is reunited with Tragicomix, a younger and handsome man (the son of a neighbouring chieftain) who intends to marry her.

Seeking to spend time together, the two lovers venture out into nearby woods, only to be ambushed by a group of Romans, led by a fresh recruit hoping to make a good impression.

Following a small argument with his friend that causes him to misplace his magic potion, Asterix is kidnapped by Caius' men.

Without both, the pair continue to seek out Panacea and Tragicomix and quickly learn that, under Caesar's orders, Caius arranged for them to become the grand finale of the emperor's show at the Colosseum.

The Gauls soon quickly make a mess of the show, winning a chariot race and easily beating down a number of gladiators.