Kal Ho Naa Ho (literally There May Be A Tomorrow Or Not) is a 2003 Hindi film set in New York City. It stars Jaya Bachchan, Shahrukh Khan, Preity Zinta, and Saif Ali Khan. The film was directed by first-timer Nikhil Advani; it was produced and co-written by Karan Johar, better known as the director of the hit films Kuch Kuch Hota Hai (1998) and Kabhi Khushi Kabhi Gham (2001). The movie is also noted for its soundtrack, which was a huge commercial and critical success and earned the composers Shankar Ehsaan Loy the National Film Award for Best Music Direction.

Unlike with many other Hindi productions, the film's makers also complied with international copyright laws and obtained the license to use Roy Orbison's "Oh, Pretty Woman" for an extended musical sequence taking place in the streets in New York. The film eventually grossed over Rs 600 million worldwide. It became the second top-grossing movie in India and the top-grossing Bollywood film in the overseas market that year.

The film was screened at the Valenciennes, Era New Horizons, Marrakech International and Helsinki Film Festival.