Carey Mulligan laughs. Then sighs, then laughs again.
The star of "Suffragette" is reacting to being told that, superimposed over a short online video she made on feminism, a pop-up ad reads "The No. 1 reason men pull away! The biggest mistake women make to kill a man's attraction!"
"That's so funny," said Mulligan, who plays Maud Watts, a young working-class mother caught up in the women's right-to-vote movement in 1920s London. "Especially when we're talking about a film like this. I have to think of that kind of thing as white noise."
Mulligan's film career was auspiciously launched six years ago with the well-received 1960s coming-of-age tale "An Education." Since then she has played Daisy Buchanan opposite Leonardo DiCaprio in "The Great Gatsby" and a folk singer married to Justin Timberlake in the Coen brothers' "Inside Llewyn Davis."
Maud, who must convincingly evolve from a nondescript laundry worker to a firebrand activist, could be her most challenging role to date.
"One big reason I was drawn to this project is that she's a completely ordinary woman who finds a voice through these other women and becomes extraordinary," she said. "So many stories are about people who already are extraordinary. This woman, you see her as she's going through the process of being radicalized."
"Suffragette" also features veteran actors including Meryl Streep and Helena Bonham Carter, but it's really Mulligan's picture to make or break. Did she feel that kind of pressure during shooting?
"No, it really felt like an ensemble to me," she said. "Except when I was in a prison cell, alone."