Prateik got so attached to Hero, a pup on the sets of his next film, My Friend Pinto that their 'chemistry' started troubling director Raghav Dhar.

He was heard complaining about the time the young actor and co-star Kalki Koechlin spent with the canine on the sets, rather than shooting.

MFP, which is being produced by Sanjay Leela Bhansali revolves around Prateik, who plays Michael Pinto, and his relationship with this whelp.

Apparently, the two (seen in pictures on right) were inseparable, both while shooting and off it.