[1] On 17 June 2019, she visited at the Galerie Vivienne under the stylist Nathalie Garçon, initiator of the association organized a fashion show in order to improve the visibility and outlook on women over fifty.
During the early 1990s, Treil followed her two consecutive screen appearances in both French and Canadian cinema, such as 1991's Jesuit Joe and 1993's Entangled featuring Roy Dupuis, Judd Nelson and Pierce Brosnan.
On 6 January 2004, she became vice president of the EVA Association which aims to assist people recovering from debilitating illness through experiences in adventurous sports, and Treil was also an avid skydiver.
[2] On 3 October 2005, Treil was invited to Jean-Roch's birthday party at the Paris' VIP Room, along with various guests including Adriana Sklenaříková-Karembeu, Astrid Veillon, Lorànt Deutsch, Frédéric Beigbeder, Didier Drogba, Pascal Obispo and Grace Jones.
[citation needed] On 18 June 2007, Treil attended the Jean-Daniel Lorieux's paintings exhibition cocktail at the Salons Jacques Dessange, that included Sarah Marshall, Nora Arnezeder, Florence Darel, Alessandra Martines, Liane Foly, Pierre Cornette de Saint-Cyr and Yves Rénier.