What is the fine-grained topic of the following text: After having cast the teenage heartthrob Shahid Kapoor as the 'Ranjha' in his next film titled Heer And Ranjha, director Sabbir Khan has pulled off a casting coup by roping in Deepika Padukone as 'Heer'. Only return the topic.
Casting Shahid Kapoor and Deepika Padukone in the film Heer And Ranjha.