To play a kid suffering from progeria, Bachchan spent hours putting on prosthetics.
Ranveer buffed up for his role as Khilji, going on a strict diet and even cutting off all forms of sugar.
Bobby quit alcohol and began regressive gymming. His toned body is also to look out for in Animal.
To look the part of a paraplegic, Hrithik put on lots of weight by happily munching away.
Rajkumar went through a weight loss process where he stopped drinking and eating and lost ten kilos.
Randeep's transformation was remarkable as he lost 20 kilos in 28 days.
Aamir put on a lot of weight to play the part of the older version of Mahavir Phogat.
Farhan's transformation turned eyes as he went on a super strict diet to look ripped.