Kareena Kapoor might've missed playing Shah Rukh Khan's sweetheart in Kal Ho Naa Ho, but the actor has been chosen to play the lead role in Ramgopal Varma's film on time travel, Time Machine. According to a source close to the unit, "Varma has signed Kareena to star opposite Shah Rukh Khan in his film." Kareena is already doing her second film with Shah Rukh. The actor is doing a cameo (Helen's role) in Farhan Akhtar's Don. Kareena has worked with Shah Rukh in his home production Asoka. It may be recalled at this juncture that Kareena was earlier doing a film with Harry Baweja titled Love Story 2050 with Harman Baweja, but she opted out of it. Now there's a buzz questioning whether she opted out of Harry's film to do Ramu's film.