^^ I agree with previous poster. Nothing that can be done. If you are lucky maybe they will RTS it and you'll get it back.
Just remember sending items to production addresses is always risky so don't send anything you wouldn't mind not getting back.

Likely it will get forwarded to his agency. Usually it does.
Otherwise there's nothing really that you can do to get it back, sorry.

Hello everyone
so it was my first time sending fanmail to Mr. Michael Fassbender on the set of "Jane Got a Gun" because to my knowledge they had began to film.
However, I found out today that Michael withdrew from the project and so i doubt that he'd be at the via venue address!!
What could I do to somehow get the envelope back or would it be forwarded to mr fassbender?
If it wont get forwarded id really like it back because I worked so hard on the letter and decorating the envelope!
please help!!