Shah Rukh Khan and Kareena Kapoor last did a film together in 2001 and that was Santosh Sivan's Asoka. Later, their relationship apparently soured because she refused to do Karan Johar's Kal Ho Na Ho over the price she was being offered. Since then, Kareena Kappor did item numbers for Shah Rukh Khan in Donn and Billu.. and sort of restored their screen rapport. Now comes confirmation that she is doing his home production Ra.One. Yes, strange name for a film, but then, SRK does strange things in this one - like flying in the sky to save mankind. Yeah, he plays a super hero. But the leading lady's role is substantial as well and Kareena has scope to perform stunts like she has never done before. The project goes on the floors in December. The film will be shot in several places across the US until January, followed by a long stint in Mumbai.