PK is a 2014 Indian satirical science fiction comedy film. The film was directed by Rajkumar Hirani, produced by Hirani and Vidhu Vinod Chopra, and written by Hirani and Abhijat Joshi. The film stars Aamir Khan in the title role with Anushka Sharma, Sushant Singh Rajput, Boman Irani, Saurabh Shukla, and Sanjay Dutt in supporting roles. It tells the story of an alien who comes to Earth on a research mission. He befriends a television journalist and questions religious dogmas and superstitions.The film received positive reviews and, at the time, emerged as the highest-grossing Indian film of all time, and ranks as the 70th highest-grossing film of 2014 worldwide. The film has been regarded as one of the best Hindi films of 2014. PK is the first Indian film to gross more than ₹7 billion worldwide. It is also the first Indian film to gross US$100 million (Rs 630 crore) worldwide. It is currently the third highest-grossing Indian film of all time, behind only Dangal (2016) and Baahubali 2: The Conclusion (2017).