From Wikipedia: "Kartar Singh is a Pakistani Punjabi film about the Partition of India and the violence after it. It describes the conflicts between Hindus, Muslims and Sikhs. This film is said to set on a real story. The title role is about antagonist Kartar Singh who is a petty criminal and trouble maker. The title character is played by Alauddin who became famous for this film. He is always remembered for this film. It is said that Sikhs failed to recognize him as a Muslim as he is not a Sikh in real life. It is considered one of the super hit blockbuster Punjabi films in Pakistan and in the history of Punjabi cinema. This film was also shown for three years in East Punjab."