In an interview to PTI, Sidharth says, "It is a waste of time to think what the other person is doing or which film he has signed. I've no control over that, I've no benefit or negative in that.
"Just because somebody's film doesn't perform well, doesn't mean mine will and if mine doesn't do well then it isn't that nobody else's will work. The audience today can smell a film from the trailer and only come to theatres if they like it."
"I am also mostly the last person to know what's happening in other people's life. I don't have my ears to the ground with regards to what film's others are signing. That's the most sane way to live," he says.
The 32-year-old actor, who has featured in six films since his 2012 debut, says nobody in the industry has been able to crack the formula of getting hit films all the time.
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"The profession has so many ups and downs, it has no certainty. Any working actor, senior or junior, can't say that 'I am set for the next three films.' You never know what works for sure. With the star power, you can bring in the audience on a Friday but nobody knows what's going to happen on a Monday.
Sidharth's next film is "A Gentleman", which is directed by Raj and DK.
While action is something he has done before in "Ek Villain" and "Brothers", he is venturing into the comedy space for the first time.
"Slapstick comedies never made sense to me. I am still waiting for a good story in that space. It becomes very difficult to convince myself to do one gag after the other, without any head or tail or any semblance of a story.
Also starring Jacqueline Fernandez, "A Gentleman" is scheduled to release on August 25.