It was key to director Douglas Attal to find the right balance in the use of visual effects. They are an integral part of the film's universe but they shouldn’t take over the story. During the live shooting, the technical process obviously took time but it never interfered with the work with the actors. During post-production, the Paris team implemented their technical and narrative know-how.
The Paris teams completed the work of another visual effects company, CGEV. Levitations, flaming or electrified reflections in the eyes, the addition of wounds and blood, everything was done to allow the director to bring the first-ever French superhero movie to screen. The creative challenge was to add drama, technique, and know-how to the story imagined by the director.