Question: Who was the director of the 2014 sci fi comedy film which features the romantic Hindi song Chaar Kadam?
Sentence (from "PK (film)"): 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.
Relevant evidence: No