Pulp Fiction. Smart, sassy, anarchic and deliciously retro. Elliptic story-telling with Tarantino, Travolta and Sam Jackson at their absolute best (for some great reviews, see the Rotten Tomatoes site). Such a brilliant poster too, it somehow manages to combine the fantastic pulp magazine feel of the 1930s and 40s pulps, with a slicker modern sensibility.
Here’s a review of almost 20 2014 SF and Fantasy movies with movie posters and trailers.