Bang Bang! is a 2014 Indian Hindi-language action comedy film directed by Siddharth Anand and produced by Parth Arora of Star Studios. The film is an official remake of the 2010 American film Knight and Day and stars Hrithik Roshan, Katrina Kaif, Javed Jaffrey, Danny Denzongpa and Pavan Malhotra. In the film, a mysterious thief encounters with an unassuming bank receptionist, which sets off a chain of events resulting in a series of escapades.

Bang Bang! was made on a budget of ₹140 crore (US$22.94 million). It was released in conventional and IMAX theatres on 2 October 2014, coinciding with Gandhi Jayanti and was also released with dubbed versions on the same date simultaneously in Telugu and Tamil. The film grossed ₹352 crore (US$57.68 million) globally to become one of the top grossing Bollywood films of 2014 and the 38th highest grossing Indian film of all time.