Dolmaire, having played theatre since the age of ten, quit his physics studies, in order to follow acting courses at Cours Simon. He was only in his second course when he was approached by the director Arnaud Desplechin for the role of Paul Dédalus in My Golden Days, the sequel to «My Sex Life... or How I Got into an Argument». Dolmaire plays the adolescent version of the character in the movie, whilst Mathieu Amalric plays the elder.