'Kamal Haasan' filmed his scenes in 5 days.
First tamil film to be shot in Red One Digital camera
KamalHassan Daughter shruthi hassan sung title track of this film.
Inspired from 'a wednesday' (2008) a bollywood film by neeraj pandey starring naseeruddin shah and anupam kher in the lead roles.'a wednesday' was also adapted into a Sri Lankan movie called 'a common man' (2013) starring ben kingsley in the main role