Task: Explanation
Input (English): Life in a... Metro is a 2007 Indian musical drama film co-produced, written and directed by Anurag Basu, set in Mumbai, featuring an ensemble cast of Dharmendra, Nafisa Ali, Shilpa Shetty, Shiney Ahuja, Kay Kay Menon, Kangana Ranaut, Sharman Joshi, Konkona Sen Sharma and Irrfan Khan. The music is composed by Pritam with lyrics by Sayeed Quadri. The film was released on 11 May 2007. It narrates the lives of nine people living in Mumbai and deals with topics like extramarital affairs, sanctity of marriage, and love. The film was critically acclaimed for its story and screenplay. The general plot and a number of characters are based on two classic films, "The Apartment" and "Brief Encounter". Question: Who directed the British romantic drama film which Life in a... Metro general plot and a number of characters are based on  Answer: David Lean
Output (English):  The general plot and a number of characters are based on two classic films, The Apartment and Brief Encounter.