 Bhopal : A Prayer for Rain is a 2014 historical @-@ drama film set amidst the Bhopal disaster that had occurred in India on 2 – 3 December 1984 . It is directed by Ravi Kumar and features Martin Sheen , Mischa Barton , Kal Penn , Rajpal Yadav , Tannishtha Chatterjee , and <unk> Thakrar in important roles . Benjamin Wallfisch composed the film 's music . Kumar got the idea of making a film based on the Bhopal disaster after he read a book based on it . Shot over a period of 18 months , it was originally slated for a late 2010 release . However , the lack of responses from distributors kept on delaying the release . 
