After starting her career at Antenne 2 with Ève Ruggieri and then Marie-France Brière, Ariane Toscan du Plantier joined Lazennec productions as head of distribution where she worked on Mathieu Kassovitz's Hate (La Haine) and Eric Rochant's The Patriots (Les Patriotes), to name but a few.
In 1995, she left Lazennec for Gaumont to manage international promotion. She was appointed Head of Communications and Heritage in 2013, coordinating all communication related to Gaumont's operations in France and around the world (films, fiction series, animation series, etc.). She also managed Gaumont's brand image through French and international festivals and initiatives to promote its heritage by screening films from the Gaumont catalog as well as developing and distributing titles from the Gaumont Private Collection.  Since December 2019, she has been in charge of the French and International Cinema Distribution Division.