Kristen Stewart has revealed that she is impressed by Taylor Lautner's new physique.
Seventeen year old Lautner reprises his role as Jacob Black in the New Moon, the second movie in the Twilight saga.
In the film Black undergoes a major physical transformation that required Lautner to hit the gym and beef up for the role.
In an interview with Total Film the actress said: "The cool thing is that it's not just physical. You can read it all over him, just in his entire attitude.
"The difference between the kid that did Twilight and this guy now is pretty astounding."
Stewart reprises her role as Bella Swan in the second of Stephenie Meyer's novels to be adapted for the big screen.
New Moon continues to follow Bella Swan's romance with vampire Edward and she is left broken hearted when he and his family leaves town.
But childhood friend Jacob Black, who is carrying secrets of his won, is there to pick up the pieces as they grow closer.
New Moon is released 20th November.
Tagged in Kristen Stewart Twilight