The Man of Steel actor stopped by NBC's Late Night with Seth Myers where to recounted an embarrassing experience during the filming of Man of Steel.
The 32-year-old explained how he woke up in the middle of the night and needed to go to the bathroom but ended up locking himself out of his hotel room.
He says, "I passed out a bit jet lagged and I woke up to the sound of my door closing in my hotel room. Of course, I then realised that I was on the outside of my door - and I had no clothes on."
"I had completely gotten up to go for a pee... At the foot of the bed was the entrance to the hotel by my room, and to the left of the bed was where the bathroom was. I got out the right-hand side of the bed and just went straight for the first door I saw and woke up completely naked in the hallway."
"Being naked in the hallway is a pretty big problem, but I needed to pee and I was desperately thinking, 'Where am I going to pee?'"
But it only got worse from there...
"Naked and peeing in a hotel hallway is pretty bad. I was looking up and down the hallway and I was checking out pot plants of all sorts... I thought, 'Do I pee in there? What if someone catches me? That's pretty bad.' I remembered there being a fire escape, and so I ran up this fire escape, because I knew there was a pool area on top and a tennis court.
"I thought, 'Maybe there's a bathroom up there.' I ran up the fire escape to the roof and it turned out to be a tennis court, which was all closed off and I couldn't get anywhere. This was around 3 a.m. I then thought, 'I've got to pee. This is getting bad now.' So, I just peed off the top of the hotel. I felt like a little boy again. Then it dawned on me that I hadn't quite solved the problem because I was locked outside my hotel room naked - and on the roof now."
"I then thought, 'You know what? You've just got to suck it up, get downstairs and ask for your key.' I thought, 'You know what? Ride the elevator down. Be a man about it.' I got in the elevator, rode down the lobby, and I thought, 'OK, this guy's going to laugh at me.' I walked into the reception, and I said to the receptionist, 'This is really embarrassing. I locked myself out of my hotel room. Can I have my key back to get in.' And he says, 'Yeah of course. What room are you in?' Doesn't bat an eye! Doesn't even look up."
"And I was thinking, 'How often does this happen at this hotel? Why have I met no one else in the hallway at this stage, high-fiving naked dudes walking past? So he said 'I'll call security,' and security walked me upstairs,, which was an awkward elevator ride, by the way. He was a bit more freaked out than the receptionist; it was clearly his first time. They let me back in. I didn't sleep for the rest of that night and I was pretty sure I was going to have been caught on camera and lost the job."
"I now put chairs up against the doors of every hotel I sleep in."