Milan Luthria has directed the stars to get familiar with each other for 'Once Upon a Time in Mumbaai' sequel

Milan Luthria has adopted an interesting way to make his upcoming gangster sequel look as real as possible.

After we told you that the director has asked lead actor Imran Khan to acquaint himself with local goons from the city to prep for his role, we now hear that he has asked his hero to get more familiar with the film's female lead Sonakshi Sinha.

Sona and Imran apparently have been asked to meet each other up and develop some crackling chemistry between them. Our source says, "They should look like old friends on screen. In fact, before Milan introduced them to each other at a meeting, they had never even met."

And now apparently, both the actors are trying their best to socialize with each other as much as possible. The source adds, "Imran has planned to invite Sonakshi for dinner at his place."