“The Vagina Monologues” playwright Eve Ensler has been speaking out about violence against women and girls with her V-Day movement for years. But she took things to a whole new level on February 14 of last year: One Billion Rising, her call to action that made headlines all over the world and even prompted celebrities like Anne Hathaway to speak out about gender-based violence. The premise was simple: on February 14, all over the world, women and men were asked to stop what they were doing and dance in the name of ending violence against women. Last year, one billion people “rose and shook the earth” through dance to strike back against the startling UN statistic that 1 in 3 women will be raped or beaten in their lifetime. One Billion Rising will be back in 2014 for a second round, and we are all invited to participate. This year, Ensler is screening a short film she created with Tony Stroebel about last year’s movement. “One Billion Rising” will be available to watch online on January 19, the same day it’s set to premiere at Sundance Film Festival. The film compiled footage of One Billion Rising from all over the world, and was put together with contributions of filmmakers from 207 countries. Check out the trailer and share it with everyone you know so we can make this year’s movement even bigger.