Actor Ranbir Kapoor paid a small emotional tribute to his late father Rishi Kapoor at the official poster launch event of his upcoming movie 'Brahmastra' in the national capital on Wednesday. 

'Brahmastra' director Ayan Mukherjee with lead actors Ranbir and Alia Bhatt was also present at the event. After unveiling the official poster of the much-anticipated movie, Ranbir got emotional and recalled his conversation with his father about the film that was under production for more than eight years. "I miss my father terribly today. I remember during the making of the film, he kept fighting with Ayan and me and kept questioning us.