3 Idiots (lang-hi???? ???????) is a 2009 Bollywood comedy film directed by Rajkumar Hirani, with a screenplay by Abhijat Joshi, and produced by Vidhu Vinod Chopra. It was loosely adapted from the novel Five Point Someone by Chetan Bhagat. 3 Idiots stars Aamir Khan, R. Madhavan, Sharman Joshi, Kareena Kapoor, Omi Vaidya, Parikshit Sahni and Boman Irani.

Upon release, the film broke all opening box office records in India. It was the highest-grossing film in its opening weekend in India and has the highest opening day collections for a Bollywood film. It also has the record for highest net collections in the first week for a Bollywood film. Within 10 days of its release, the film crossed the INR 1 billion mark in India and became the first film of 2009 to do so. The film also created a new box office record for a release in the last quarter of a year (October to December), breaking the previous record set by Ghajini (Ghajini (2008 film)). It is also the highest-grossing film to be released in the second half of the year (July to December), breaking the previous record also held by Ghajini (Ghajini (2008 film)).

3 Idiots has become the highest-grossing Bollywood movie of all time in India. The film set a box office record for the Indian film industry (Cinema of India), grossing Rs (Indian rupee) 410 crore (US$ (United States dollar) 90.5 million) worldwide. It is expected to be the first Indian (India) film to be officially released on YouTube, within 12 weeks of releasing in theaters on March 25, 2010. The film also went on to win many awards, winning six Filmfare Awards including best film (Filmfare Best Film Award) and best director (Filmfare Best Director Award), and ten Star Screen Awards.

The film also uses real inventions by little known people in Indias backyards. The brains behind the innovations were Remya Jose, a student from Kerala, who created the exercise-bicycle-cum-washing-machine, Mohammad Idris, a barber from Meerut district in Uttar Pradesh, who invented a bicycle-powered horse clipper, and Jahangir Painter, a painter from Maharashtra, who made the scooter-powered flour mill.