"We are all going to wear white ribbons," Alain Terzian, the head of the French Academy said after actors and directors at the Golden Globes and the British Bafta awards wore black in solidarity with the #MeToo movement.
The Berlin film festival, which wrapped up last weekend, also came under pressure to replace its red carpet with a black one in support of victims of sexual harassment in Hollywood after the Harvey Weinstein scandal.
The Cesars sparked feminist fury last year by inviting controversial Franco-Polish director Roman Polanski to preside over the awards before he was forced to pull out.
The veteran filmmaker -- who has been accused of sexual assault by several women -- is wanted in the United States for the statutory rape of a 13-year-old girl in 1977.
Terzian said the Franco-American actress and director Tonie Marshall came up with the white ribbon idea to support a French foundation that works to stop violence against women.
"We will all wear the ribbon with conviction and determination," he added.
French Culture Minister Francoise Nyssen said film producers had a huge "responsibility to fight stereotypes, discrimination and harassment" both on camera and behind it.
"No matter who were are dealing with, we cannot have any tolerance or complacency about unacceptable behaviour," she added.
Nyssen also was highly critical of how few films directed by women get made.
"Certainly we have made some progress in recent years, but it is still not acceptable that there are fewer women film-makers, that they are less visible and less supported" than their male counterparts, she said.
"In 42 years the Cesar for best director has only been won once by a woman," she added, referring to Marshall, who won in 2000 for "Venus Beauty".
She said only one in five feature films subsidised by the French state every year are made by women.
The situation is Hollywood is even worse, with only seven percent of the top 250 films in 2016 directed by women.
Several actors at Berlin launched a campaign to bring equal rights to the red carpet.
German star Anna Bruggemann urged actresses to ditch high heels and low-cut dresses to challenge the "patriarchal gaze" women face at award ceremonies.
She launched a Twitter hashtag #NobodysDoll and signed up a number of other mostly German stars to her causes.