Before starting off his career as an actor, Kapoor worked as an assistant to director Sanjay Leela Bhansali, where he was involved in the making of the film Black (2005).Kapoor later made his acting debut in November 2007 with Bhansali's Saawariya opposite newcomer Sonam Kapoor. The film failed to do well at the box office, though his performance was largely appreciated. Kapoor was then seen in Siddharth Anand's romantic comedy Bachna Ae Haseeno (2008) alongside Bipasha Basu, Minissha Lamba and Deepika Padukone. The film performed reasonably well at the box office.
He recently appeared in Prakash Jha's multi-starrer Rajneeti, which released on June 4, 2010. Kapoor's forthcoming projects include Siddharth Anand's Anjaana Anjaani with Priyanka Chopra, and Imtiaz Ali's Rockstar with newcomer Diana Penty.
Kapoor currently lives with his parents in Pali Hill in Mumbai, Maharashtra. Ranbir identifies himself as half Hindu and half Sikh. During an interview in March 2008, he announced that he was dating Bollywood actress Deepika Padukone. The couple later broke up in October 2009.
