Aamir, 49, who recently watched the trailer of the action film, said Hrithik and female lead Katrina kaif are looking like "million bucks".
"I wish I could dance half as well as Hrithik! I really loved the new song of 'Bang Bang'. And the Bang Bang trailer is outstanding! Hrithik and Katrina look like a million bucks!," Aamir Khan posted on Twitter.
I wish I could dance half as well as Hritik! I really loved the new song of Bang Bang! https://t.co/X5DZUVICsG— Aamir Khan (@aamir_khan) September 2, 2014
Hrithik unveiled the film's first romantic track 'Tu Meri' last month where the lead pairs could be seen doing some high-octane dance moves.
The 'Dhoom 3' star is also amazed by the action scenes of the action-romance film.
"Love the shot of Hrithik come shooting out of the water with guns pointing! Can't wait for Oct 2!," he added.
Produced by Fox Star Studios, 'Bang Bang' is directed by Siddharth Anand. It will hit theatres along with Vishal Bhardwaj's 'Haider' on October 2.