Butterflies in Sanjay Gupta's stomach!

The 'dialogue promos' of "Shootout At Wadala" have come out Friday and director Sanjay Gupta is a little nervous about the response.

"Today is a very auspicious day. I am so glad that our dialogue promos and our anthem, 'Aala re aala' are out today. God bless our film," Gupta tweeted.

"Only three dialogue promos out yet, but I can feel the heat now. And the faint flutter of a butterfly in my gut," he further posted.

Inspired by Mumbai Police's first official encounter, "Shootout At Wadala" revolves around gangster Manya Surve, played by John Abraham.

The cast also features Anil Kapoor, Kangna Ranaut, Tusshar Kapoor and Sonu Sood in key roles.

It is scheduled for a May 1 release.