Ranbir Kapoor is back to working with his favourite director again. The bollywood heartthrob is busy these days prepping for his superhero film Dragon being directed by Ayan Mukerji. A recent pic that has surfaced on social media shows the duo after a training session for the superhero flick with Ayan. Earlier, Ranbir was also seen rehearsing with a movement expert for the film. Ranbir’s character has super powers which include emitting fire from his palms. So he has to train hard to get his limb coordination right. Also the stunts in the movie are high end. So he has to train for them too. He’s being trained by international experts. The movie has hit its pre-production phase and will be produced by Karan Johar. The movie which also stars Alia Bhatt will have the 23 year old actress do some high intensity stunts too. Though she doesn’t have any super powers.