Movie posters
The movie posters are maybe the most creative and the less ones... So much posters looks the same, with big stars in front, some elements of the movie on the background...

I do one for a french movie, after presenting a lot of varied proposals, even in illustrations, Iget a call from the distributor who tells me, "ok, nice, but you take this picture, you put it that big, you put the title under it, the name of the actors there... for the press kit you can do what you want, but for the poster, I know what works"... So frustrating, and I guess it is the same for a lot of movies...

Any way, here come a selection of movie posters that are differents, in a way or an other... I found them all on http://www.impawards.com/
 

Also, it seems there is agencies specialized in movie posters... check these :
blt and associates, concept arts, crew creative, cimarron group, intralink...

And if you like illustated movie posters, like the Stars wars one, here comes the specialist : Drew Struzan