A big green ogre is set to invade New York City next month, as Shrek's latest installment, Shrek Forever Afterhas been announced as the opener of the 2010 Tribeca Film Festival. The third sequel of the DreamWorks Animation series will debut at the downtown Manhattan festival on Wednesday, April 21, a full month before it opens nationwide. And yes, it will be presented in 3D.

The choice somewhat follows in the footsteps of Up being the first 3D film to open Cannes last year. Yet 3D is really becoming a staple of international film festivals lately. Venice premiered the 3D re-releases of Toy Story and Toy Story 2 3D and even inaugurated a special award solely for 3D films. Earlier this year, Sundance premiered the popular 3D nature film Cane Toads: The Conquest, though it wasn't the fest's first foray into 3D presentation.