The orange and teal look is an artefact of technological possibility and creative laziness. About a decade ago, filmmakers started digitising film and electronically manipulating it, which gave them the ability to adjust colours for the whole film as easily as tweaking an image in Photoshop. While some of the more visionary filmmakers have used this as a creative tool (the Coens made use of it in Oh Brother Where Art Thou to give the film a sepia look, and Peter Jackson made extensive use of colour grading in the Lord Of The Rings films), those churning out action films, who typically have no time for such hoity-toity concerns as artistic vision, needed a quick and easy formula for how to make their films look more awesome. And they got one in complementary colour theory; human skin tones (especially when oversaturated for extra awesomeness) look orange, and stand out most strongly against bluish-green hues. Thus, grading films to an orange-on-teal palette is a cinematic equivalent of compressing the dynamic range of recorded music for extra kick-ass loudness; both add extra zing, producing a product that's superficially exciting, at the cost of subtlety. Though who goes to see Transformers for subtlety, right?
As artificial as it looks, it'll look quaint once they figure out how to shoot entire films in HDR.