Oscar-winning actress Kate Winslet has revealed she has "bitter regrets" over "poor decisions" to work with "directors, producers and men of power" in Hollywood.

Speaking as she collected a gong at the London Critics' Circle Film Awards, the Titanic star said: "There are directors, producers and men of power, who have for decades been awarded and applauded for their highly regarded work, by both this industry and movie-goers alike.

"Indeed, many actors have had flourishing careers due in part to roles played in their films.

"The message we received for years was that it was the highest compliment to be offered roles by these men."

Becoming emotional, Winslet continued: "As women around the world, and from all walks of life, marched last weekend, once again joining together to speak out against harassment, exploitation and abuse, I realised that I wouldn't be able to stand here this evening and keep to myself some bitter regrets that I have at poor decisions to work with individuals with whom I wish I had not.

"It has become clear to me that by not saying anything I might be adding to the anguish of many courageous women and men."

Winslet came under fire last year for her response to a question by The New York Times about the abuse allegation made against Woody Allen, who she recently worked with on Wonder Wheel.

Allen has been accused by his adopted daughter Dylan Farrow of sexually abusing her as a child. He has repeatedly denied the allegation.

"As the actor in the film, you just have to step away and say, 'I don't know anything, really, and whether any of it is true or false'," Winslet was quoted as saying.

Winslet's remarks were then referenced by Farrow in an opinion piece in which Farrow alleged that Allen had been "historically protected" by "forces" in Hollywood.

"It breaks my heart when women and men I admire work with Allen, then refuse to answer questions about it," Farrow wrote in the Los Angeles Times.