Jaume Collet-Serra, Director of "The Commuter", says that he's "a really good guy."
For the full interview [click here](https://cheddar.com/videos/inside-liam-neesons-latest-psychological-action-thriller).
Look around - the walls you see can actually be used as gym equipment. Personal trainer Lamont J. Wallace demonstrates some moves you can do to build strength just about anywhere.