Skew Corner Points of Movie Clip

Is there a way to skew the corner points of an MC so I can fake some 3D animation? The transform tool can only skew in limited directions. I need to be able to move actual corner points. I can use the sub selection tool to move the corner points of a shape but not an MC that I can see. I dont want to script it since it needs to work with an animation that was done in Maya and imported in.

Thanks for any help