New 'Pirates of the Caribbean' Trailer: Here There Be Mermaids

[caption id="attachment_28094" align="alignleft" width="300" caption="Disney"]Johnny Depp and Geoffrey Rush in "Pirates of the Caribbean: On Stranger Tides"[/caption]

Yarrrrr! Avast, me hearties, because there be mermaids in these here internets!

Cinch up your eyepatch and strap on your hook. The brand new full length trailer for "Pirates of the Caribbean: On Stranger Tides" has just arrived over the starboard bow and it's got pretty much everything a scurvy swashbuckler could want: Johnny Depp in full-on Captain Jack Sparrow mode, witty banter with the incredibly sexy Penelope Cruz, Oscar nominee Geoffrey Rush searching for the Fountain of Youth as pirate lord Barbossa -- and, oh yeah, both mermaids and a surprise appearance by Keith Richards himself.

It's enough to make even the saltiest seadog weigh anchor.

This isn't the first trailer for "Pirates of the Caribbean: On Stranger Tides," of course; the film, which opens on May 20, has been teasing fans for months with clips of swordplay and adventure on the high seas. But this time around we finally get a good glimpse at  the storyline -- and it involves the dread pirate Blackbeard (Ian McShane) and the usual band of stuffy British creeps vying to find the Fountain of Youth. Just one problem for everyone involved, though -- they need a mermaid to get there.

And those ladies are very, very hungry by the looks of things.

But don't just take our word for it, lubber; here's the whole clip, courtesy of Yahoo! Movies. So batten down the hatches and get ready for a dose of adventure on the high seas: