The movie Monsters vs. Aliens was the first feature movie to be released in stereoscopic 3D .
It was DreamWorks Animation 's first feature film to be released in stereoscopic 3D , as well as the first animated feature film to be directly produced in a stereoscopic 3D format instead of being converted into 3D after completion , which added $ 15 million to the film 's budget .
Monsters vs. Aliens