The 32-year-old actor, who was last seen in 2013 film "Go Goa Gone", is playing a casanova in the film.
Kunal took to social networking site Twitter to share the trailer of the film.
"Here it is. The official trailer of #BhaagJohnny http://bit.Ly/BhaagJohnnyTrailer..." he wrote.
The actor is playing the lead role of Janardhan Arora, a lover boy who unknowingly gets stuck in a plan and is forced two lead two lives.
The story is based on a series of events which happen in the duration of 72 hours.
Produced by Super Cassettes Ind Pvt Ltd, the film is slated to release on September 25.
