Sajid Nadiadwala's Anjaana Anjaani that brings together for the first time Gen-X stars Priyanka Chopra and Ranbir Kapoor is a zingy romantic comedy which starts out as people meeting as strangers before they fall in love with each other.

Not only did the 2 actors have a blast while shooting for the film but were so keen during the making that they even helped out in other departments.

Sources reveal that when Ranbir and Priyanka weren't in front of the camera they would be busy helping out the production crew much to everyone's surprise and delight.

Says an eyewitness "Priyanka would help the extras with their hair and make up and give them styling tips.There were times she would help in controlling crowds that would gather to watch the shoots"

On the other hand Ranbir Kapoor who taking much inspiration from his assistant director days would help Siddharth Anand on the sets.

"On the sets you'd sometimes see Ranbir giving the clap or even talking to Siddharth about filming angles and the likes." adds the source.

This season join in the madness as Nadiadwala's Anjaana Anjaani releases September, 2010.