Filmmaker Karan Johar says he is "dying" to watch his close friend and superstar Shah Rukh Khan's forthcoming film "Fan". Karan, who has worked with the 50-year-old star in films like "Kabhi Khushi Kabhie Gham...", "Kabhi Alvida Naa Kehna", ""My Name Is Khan" and "Kuch Kuch Hota Hai" took to Twitter to share his desire to watch the film. "Dying to see 'Fan'! Shah Rukh Khan... Do you think Adi (Aditya Chopra) will show it to anyone before the 15th," Karan tweeted. "Fan", which is directed by Maneesh Sharma, will see the "Dilwale" star playing a double role. The actor was first seen playing a dual avatar in the 1998 film "Duplicate", in which he played both a postive and a negative character. Produced by Yash Raj Films, the movie hits the screens on April 15. (Source: IANS)