Directed by Siddharth Anand, "Bang Bang" is produced by Fox Star Studios and is being touted as the biggest action-romance of the year.
Shot in Prague, Phuket, Greece, US and Indian cities like Shimla, Manali, Delhi and Mumbai, the film with guns, explosions and death-defying action stunts will hit the screens on Gandhi Jayanti, which falls on Oct 2.
"As a film, 'Bang Bang' has turned out amazing. Big canvas, great emotion and chemistry and outstanding action! The teaser gives a glimpse of the film and we are proud to present the biggest action-romance entertainer of the year," Vijay Singh, CEO, Fox Star Studios, said in a statement.
Anand says that Hrithik and Katrina are two of the `most gorgeous people in the film industry`.
`This is Hrithik's biggest action film that he has done to date and they simply look awesome with each other,` he said.
And friends from the film fraternity agree too.
Here's what they tweeted:
Priyanka Chopra: Love the teaser of Bang Bang!! Katrina @iHrithik and Siddharth anand!! Killing it!!! (sic).
Neha Dhupia: #bangbangteaser lookin bangin hot ! @iHrithik #BangBang #Katrina
Arjun Kapoor: @iHrithik wish I cld list the words I have used in 60secs...F**K what a teaser #BangBang
Sujoy Ghosh: Just saw the BANG BANG teaser. so proud of siddharth anand .. aap bhi dekho if you haven't already..
Parineeti Chopra: What an amazinggggg teaser!!! Beacause you're Happyy tananananana @iHrithik
Tusshar Kapoor: Awesome trailer @iHrithik! All the pain, patience & perseverance behind the perfection seems to have paid off & it shows with a huge banggg!
Dia Mirza: Smouldering hot. These two can set anything afire. This TEASER is BANGING! #bangbangteaser @iHrithik jaw on the floor. No no. Leave it be;)
Karan Malhotra: @iHrithik WHAT A BLOODY TEASER!!!!! BANG BANG IS GOING TO ROCK!!!!!!!!
Karan Johar: No this is what you call a TEASE!!!! http://bit.ly/1ty9YWQ #BangBang The mind is blown!!!!!
Abhishek Bachchan: What a great teaser for #BangBang loved it! Well done bro braz @iHrithik , Katrina, Sid.
Abhishek Kapoor: Smashing trailer of #bangbang. Raised the bar once again @iHrithik http://
Sonam Kapoor: Why are they so good looking!! http://bit.ly/BangBangTeaser @iHrithik This is too hot!
Sanjay Gupta: Shot at a fraction of KNIGHT AND DAY's budget, BANG BANG looks even better than the original. Well done FOX India.
Riteish Deshmukh: Bang Bang Bang Bang Bang Bang Bang Bang Bang Bang Bang Bang Bang Bang Bang Bang Bang Bang OutBANGintastic - Mummy ki eye teaser @iHrithik.