A new poster for Disney’s upcoming Pirates of the Caribbean: On Stranger Tides has hit the web. This one gives us our first good look at some mermaids, which presumably play a large role in the film according to the latest trailer. This marketing campaign has been going on for so long now that it feels like the film should be out already, but we’ve still got over a month to go.Hit the jump to check out the new poster, as well as a recap of all the posters for the film that have been released thus far.  Pirates of the Caribbean: On Stranger Tides stars Johnny Depp, Penelope Cruz, and Ian McShane.  It opens in 3D on May 20th.Here’s the new poster (via IMP Awards):pirates_of_the_caribbean_on_stranger_tides_mermaids-movie-poster.jpgAnd here are all the previous Pirates posters that have been released so far:pirates_of_the_caribbean_on_stranger_tides_teaser_poster_hi-res_01pirates-of-the-caribbean-on-stranger-tides-movie-poster-02pirates-of-the-caribbean-on-stranger-tides-penelope-cruz-poster-01pirates-of-the-caribbean-on-stranger-tides-geoffrey-rush-poster-01pirates-of-the-caribbean-on-stranger-tides-ian-mcshane-poster-01pirates-of-the-caribbean-on-stranger-tides-johnny-depp-poster-01-Here’s the official synopsis for Pirates of the Caribbean: On Stranger Tides:

Produced by Jerry Bruckheimer and directed by Rob Marshall, “Pirates of the Caribbean: On Stranger Tides” captures the fun, adventure and humor that ignited the hit franchise–this time in Disney Digital 3D(TM). Johnny Depp returns to his iconic role of Captain Jack Sparrow in an action-packed adventure. Crossing paths with the enigmatic Angelica (Penelope Cruz), he’s not sure if it’s love–or if she’s a ruthless con artist who’s using him to find the fabled Fountain of Youth. When she forces him aboard the “Queen Anne’s Revenge,” the ship of the legendary pirate Blackbeard (Ian McShane), Jack finds himself on an unexpected adventure in which he doesn’t know whom to fear more: Blackbeard or Angelica, with whom he shares a mysterious past. The international cast includes franchise vets Geoffrey Rush as the vengeful Captain Hector Barbossa and Kevin R. McNally as Captain Jack’s longtime comrade Joshamee Gibbs, plus Sam Claflin as a stalwart missionary and Astrid Berges-Frisbey as a mysterious mermaid.