An unknown comic author makes an interesting observation.

From SlashFilm:

I’m sure you’re aware of Hollywood’s overuse of floating heads on movie posters… but have you noticed the excessive use of orange/blue contrast on theatrical one-sheets? David Chen happened to come across this comic illustrating the Blue/orange contrast, although I’m not sure where it originated or who created it. After the jump you will see a ton of examples of orange/blue contrast, however I must warn you — as the comic says, once you see it, you’ll notice it everywhere.

This phenomenon was something I was vaguely aware of but never consciously thought about. Looking at their examples it all seems very familiar.

See the examples @ /Film