Still from film

Rani Mukerji found the perfect comeback vehicle in Hichki, which sees her play an inspiring school teacher who suffers from Tourette syndrome (a nervous system disorder characterised by tics). To lend an air of authenticity to her Naina Mathur, the actor closely interacted with Brad Cohen, whose autobiography - Front Of The Class: How Tourette Syndrome Made Me the Teacher I Never Had - has inspired the Siddharth P Malhotra-directed film. A renowned motivational speaker from the US, Cohen traced his journey of overcoming the challenges of the disorder in the book that was later adapted into a TV film.