After the Battle of France (1940), Girard removed to Antibes, then a free-zone, and established a network that provided recruiting and spying work for the French resistance.

[3] Two years later, owing to her father's contacts, she was able at age 16 (at the time using the name Danièle Girard) to secure a bit part in The Beautiful Adventure (La Belle aventure (1942)).

Her first husband Daniel Gélin, who also performed in The Beautiful Adventure, said she had "the face of a little girl, an upturned nose with passionate nostrils, the lips of a child, the body of a woman and a certain way about her that turns heads.

Also notable was her performance as femme fatale in Julien Duvivier's Voici le temps des assassin (1956) (Deadlier Than the Male in the US and Twelve Hours to Live in the UK), co-starring with Jean Gabin.

[citation needed] In 1960, Delorme joined more than 140 intellectuals, teachers, writers and celebrities in signing a manifesto supporting the right of French conscripts to refuse military service in Algeria.

At the same time, the information minister stated that another cabinet order was in preparation that would deny government funding to any film project in which any signatory appeared.