eric cantona stars in a french film called ` you and the night '
the film includes a scene with cantona on all fours in just his pants .
the former manchester united midfielder says it is not a porn film .
cantona says of the film : ` it 's a piece of art ... it 's beautiful '
read : cantona whipped in film based around an orgy .
cantona : man utd will be in title race next season under louis van gaal .