Mary Bronstein's "If I Had Legs I'd Kick You" is a nightmarish drama centered on a mother's internal turmoil — and it all started with the filmmaker's own experience of crisis with her daughter. "This movie started as a seed of an idea when I was going through a crisis with my own daughter,

Mary Bronstein's 'If I Had Legs I'd Kick You' wowed the Sundance Film Festival with an all-time Rose Byrne performance.

What will surely go down as one the most stressful movies of the year is “If I Had Legs I’d Kick You,” which premiered Friday at the Sundance Film Festival.