Kalki Koechlin's brilliant portrayal of a vivacious girl with cerebral palsy in 'Margarita With A Straw' garnered acclaim from everyone but the actress was particularly touched by Vidya Balan's emotional response to her role.

Vidya Balan and Husband Siddharth Roy Kapur at the special screening of 'Margarita With A Straw'. Pic/Yogen Shah