She will be based in Paris, while head of international sales Mike Runagall will continue to be based in London. The two offices will work together under Sauzay's supervision.
She had been director of international sales at StudioCanal, and worked at TF1 before joining Canal+ in 1997.
Meanwhile, Christine Hayet becomes deputy managing director in charge of TV sales.
Pathe International's current titles include Christophe Barratier's Faubourg 36, Jane Camption's Bright Star, Ken Loach's It's A Free World, Francis Ford Coppola's Youth Without Youth, and Frederic Forestier and Thomas Langmann's Asterix At The Olympic Games.