4. Amitabh Bachchan-Kareena Kapoor Khan
Not Rani, but Kareena was the first choice for SLB’s ‘Black’. But when Big B learnt that Bebo had been roped in as the female lead, he refused to become a part of this movie. This is when Rani replaced Kareena. It is said that the relationship between the Bachchans and the Kapoors has been sour ever since the engagement of Abhishek and Karisma was called off.
5. Katrina Kaif-Aditya Roy Kapur
Though Katrina & Aditya share a cordial relationship, she refused to work with him in ‘Fitoor’ initially. Katrina became picky when ‘Fitoor’ failed at the box-office. She had also rejected ‘Half Girlfriend’ opposite Arjun Kapoor as she felt she looked older than Arjun, and also the female lead required to look like a college-going girl.