This vibrantly beautiful French film, about two seventeenth-century composers who played the viol (cello), toys cleverly with history in the manner of Amadeus. Gérard Depardieu stars as Marin Marais, a dissolute musician looking back on his youth. The teen Marais -- the actor's son, Guillaume Depardieu, is sensational in his first screen role -- studies with a stern and reclusive master, Sainte Colombe (Jean-Pierre Marielle). Seduced by the glamour of the king's court, the ambitious student…