In his film studio, Patrick BOKANOWSKI talks about his research (audiovisual and animation techniques) for his new project ("L'Ange" which will be released in 1982). Filming scenes, and excerpts from his short film "Lunch in the morning," punctuate the interview. On a film set, Patrick BOKANOWSKI describes some scenes of his project, notably "the attack of the castle of the egg"; it evokes the influence of the painter Henri DIMIER, of which he was the apprentice, his research on photographic printing, optical systems of shooting, and objectives. - He comments on a sketch of preparation explaining the image sought, and the means implemented. - Images of the shooting of scenes of characters in the darkness and light beams, accompanied by music, punctuate the interview.