Bonnot edited Melville's 1969 film, Army of Shadows, when her mother became unavailable.
He was a character––fascinating, charming, fun and tyrannical.”[4] By 1968, Bonnot had commenced her notable collaboration with director Costa-Gavras that extended over eight films and nearly 30 years.
It introduced the director's signature approach of combining overt political messages with edge-of-the-seat tension.
Throughout her life, Bonnot edited the films directed by Julie Taymor, who had been known primarily as a stage director.
She was nominated three times for the César Award for Best Editing (for The Simple Past (1977), Hannah K. (1983) and Place Vendôme (1998)).