From then until 2006, he has been in around 25 French films and TV movies, becoming internationally known in 1999 as the main male role in the film Romance directed by Catherine Breillat.

This film ignited controversy due to its sexual themes and sparked public discussion about the difference between erotic art and pornography.

His first English-speaking role was as Étienne Balsan[1] in the 2008 television film Coco Chanel starring Shirley MacLaine.

Interestingly, he interpreted another role linked to Chanel in the Christian Dior and Coco Chanel WWI and postwar biopic TV series The New Look (2024) as cubist and surrealist poet Pierre Reverdy.

From February to May 2006, Sagamore acted in Paris in a French stage rendition of A Clockwork Orange.