Bollywood superstar Shah Rukh Khan, who has won millions of hearts across the globe with his impeccable performance on the big screen, said it was easy for him to play romantic and emotional roles but found it difficult to portray unreal emotions.

The 47-year-old actor made the comment while promoting his upcoming film "Chennai Express". "I think I am only an actor. I make my job look very easy. But let me tell you it is the most difficult thing to do even after 20 years. I stand in a scene and make it look simple. But sometimes, it takes nine takes to make that happen. Romance and real emotions are easy but unreal emotions are difficult," he said, according to PTI.

"Chennai Express" is Shah Rukh's first release of the year which is set to hit screens on 9 August. The film which falls into the action-comedy genre is directed by "Golmaal" fame Rohit Shetty. Shah Rukh, who will play the role of a 40-year-old man, reunites with his "Om Shanti Om" co-star Deepika Padukone in the film after a gap seven years.

Shah Rukh and Rohit have collaborated with each other for the first time through "Chennai Express".  Speaking about Rohit and how he gave his consent to do "Chennai Express", Shah Rukh said,

"I like Rohit's sense of humour. I like his film Golmaal, All the Best. His sense of humour is madcap and crazy. After Jab Tak Hai Jaan last year, I wanted to do a comedy. Rohit first approached me with the script of "Angoor" remake."

"My mother and I loved the cult comedy. When he was leaving after the meeting, he said that he had one more script (Chennai Express) which he wrote for some other actor. But after hearing it, I found the script interesting and ended up doing it," he added.

Co-produced by Shah Rukh's wife Gauri and Siddharth Roy Kapoor, "Chennai Express" is expected to be a big hit in the Indian and International markets.