The significance is that it brings real - world issues to the forefront. It can raise awareness about the experiences of women in certain situations, like the oppression or challenges they face in a patriarchal society. By being based on a real story, it adds authenticity and makes the story more relatable to the audience.
Sorry, I don't know the basis of the story for 'Women Talking'. It could be adapted from a novel, a historical account, or something else entirely. You might try researching on entertainment news websites or film databases.