I don't know where you're getting your information from. The Good Dinosaur will be an animated film and they've already finished recording. Pixar does all of their recording in their studios in California. But if you really want Neil Patrick Harris' autograph, he is currently starring on Broadway so you could write to him there.

Would really love to know the address for this movie which has just been announced. The voices are Frances McDormand, Judy Greer, John Lithgow, and Neil Patrick Patrick Harris. It films at the New York City Studio in New York, NY but there are two production companies listed which are Pixar Animation Studios and Walt Disney Pictures. Which one would I write to? Thanks!