Women still marginalised in Hollywood, taking just 30pc of speaking roles

Sandra Bullock and Jennifer Lawrence have shown that female leads can carry big-budget films, but Hollywood still marginalises women on screen to just 30 per cent of speaking roles, according to a new report.

Women remained dramatically under-represented in 2013 despite films such as and heralding a supposed banner year for female actors, the study, titled "It's a Man's (Celluloid) World", found.

In the 100 top-grossing domestic US films, females comprised 15 per cent of protagonists, 29 per cent of major characters and 30 per cent of speaking characters - a degree of marginalisation largely unchanged since the 1940s.

"It's gender inertia. We're seeing very little change in the number of female characters that we're seeing on screen," said the study's author, Martha Lauzen, executive director of the Centre for the Study of Women in Television, Film & New Media at San Diego State University.

Recent box-office hits such as starring Bullock, starring Lawrence, and the animated feature , featuring the voice of Kristen Bell, masked the "remarkable stability" of women's marginalisation over decades, she said.

, starring Bullock and Melissa McCarthy, was another film that prompted buzz over supposedly widening roles for female actors.