Oh my Gosh, Sexiness at its best! Yeah, the first poster and a teaser of Bang-Bang are out. The sizzling hot poster of Siddharth Anands’s Bang-Bang starrer Katrina Kaif and Hritik Roshan clearly shows the chemistry between the two. The pair is half immersed under water giving the damn seductive and sensual appearance.Buzz is that the flick also embraces some breath taking action sequences.