Is it just us, or are we not picking up an awful lot of excitement for Shrek Forever After out there? The film, which comes out next month in the States, is likely to pick up a sizeable treasure chest of cash, but as we've noted before, Toy Story 3 arrives the month after, and that's the animated film that seems to have got people's attention.

To be fair, though, after the disappointing Shrek The Third, DreamWorks has a bit of work to do with its fourth and final big screen outing for the franchise (although the Puss In Boots spin-off is on the way, of course). The trailers that have been released for the movie thus far aren't showing a great deal of promise either, which we're suspecting hasn't helped build up too much excitement for the film.

Lest we forget, though, that Shrek 2 is the biggest grossing animated movie of all time, with a take of $441m in the US and a worldwide total of $919m. That's some serious change, and Shrek Forever After is likely to snag a fair bit for itself.

Ahead of the film's 21st May bow in the US, DreamWorks has released, via Facebook, what looks like the final poster for the movie. You can see that over there.

The studio has also announced plans to convert the first three films to 3D for a planned 3D Blu-ray release. DreamWorks Animation chief Jeffrey Katzenberg told the NAB convention this week (via The Hollywood Reporter) that "Our movies exist in digital files to begin with. To go back and rebuild to a quality 3D experience is not inexpensive, but we are about to achieve a pretty high quality result.".

Shrek Forever After arrives in the UK on 9th April.