What are the bright characters in Paris Dream?

Paris Dream is a love ethics film, directed by bernardo bertolucci and starring michael pitt, louis garrel and Eva Green. Based on the student movement in France in 1968, the film tells the story of three young people, Leo, Matthew and Isabella, roaming in the torrent of history with their erotic dreams.

Every character in the film has his own story and personality, and some of them are excellent. For example, Leo played by michael pitt, a talented photographer, met two girls in Paris and started a love triangle. Matthew played by louis garrel is a young writer, and he also plays an important role in the film. Isabella, played by Eva Green, is a young girl who meets Leo and Matthew while traveling in Paris, and joins their adventure.