Tom Hardy and Gary Oldman got to know each other pretty well over the past few years. They began working together on Tinker Tailor Soldier Spy, then Lawless, and finally The Dark Knight Rises, which wrapped last November. In an interview with Total Film, Tom Hardy explained what it was like working with his idol, Gary Oldman:
I spent my entire experience with Gary [on Tinker Tailor Soldier Spy] staring at him and not returning any lines because I think he’s God. The second time [on The Dark Knight Rises] I was playing God, so I ignored him. Kicked him a bit, that kind of thing. Gary Oldman is one of my heroes, I did nothing but glean from him.
Emphasis mine on the quote above. If it wasn’t clear before, I think we know how Commissioner Gordon ended up in the hospital now.