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Bang Bang! is a 2014 Indian Hindi-language action comedy film directed by Siddharth Anand and produced by Fox Star Studios. An official remake of the 2010 American film Knight and Day (2010), it marks Anand's running foray into the action genre, and stars Hrithik Roshan and Katrina Kaif, alongside Javed Jaffrey, Danny Denzongpa, and Pavan Malhotra. The soundtrack and background score were handled by Vishal–Shekhar and Salim–Sulaiman respectively, marking the latter's final collaboration with Anand, while the cinematography and editing were handled by Sunil Patel and Akiv Ali respectively. In the film, a mysterious thief encounters an unassuming bank receptionist, which sets off a chain of events resulting in a series of escapades.

Bang Bang!, made on a budget of ₹140 crore (US$22.94 million), 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 opened to positive response and grossed ₹332 crore (US$54.4 million) globally to become one of the top grossing Bollywood films of 2014.