In an interview with Indianexpress.com, the filmmaker talks about the casting challenges Hum Tum went through, from being offered to Aamir Khan, Hrithik Roshan, Vivek Oberoi to finally landing on Saif Ali Khan, who surprised everyone, including himself, when he won the National Award for his performance in the film.. Edited excerpts: A still from Hum Tum. (Photo: IMDb) Hum Tum was a time when YRF was backing a lot of young rom coms. What was your conversation with Aditya Chopra like?