From an interview (new? who knows) with Patrick P-NuT Monroe:
How did you get your nickname?
My real name is Patrick Monroe. I got the name P-Nut from Tom Hardy when we were training for the film Bronson. He thought I was crazy because of what I asked him to do in physical preparation for the role. He used to call me ‘P’ for short, he just added the ‘Nut’ because he thought I was, well, nuts!How did you get into celeb training and coaching?
It all started with my friendship with Tom Hardy. We’ve known each other for almost six years now but we didn’t start training together until Bronson. Since then, we’ve trained for Warrior and The Dark Knight Rises. I’ve trained briefly with other actors, I don’t have permission to mention, for a brief period, but my main work has been focused on Tom until now
(Source: thesundayindian.com)

