Howard Stern, Robert Downey Jr. talk rumors, 'Iron Man 4'

Robert Downey Jr.

stopped by the Stern studio on Tuesday morning to discuss his new movie "The Judge," and to clear the air on rumors regarding "Iron Man 4"...

and that one time he took a s*** in Kelly LeBrock's trailer while on the set of "Weird Science."

"It wasn't Kelly LeBrock," Downey said. "Myself and my co-star Robert Russler had been threatening that we were going to drop a three coil steamer in someone's trailer."

Downey is much loved for goofy antics and shenanigans, and confirmed the stunt was not because of any anger toward John Hughes. "That would give it some motive and logic. We were just serial dumpers."

"You're not that original. Dame Judy Dench did the same thing. Many times," Stern said.

Recently, a rumor had been circulating that Downey would sign on for "Iron Man "4 if Mel Gibson would direct it, but Downey had been debunking that notion ever since it surfaced.

"There are no plans for 'Iron Man 4', that I know of," Downey said.

Downey, who rose to the top of Hollywood through the Iron Man franchise, has since taken the silver screen by storm starring in blockbusters like "Sherlock Holmes" and "Tropic Thunder."

Robert Downey Jr.'s new movie, "The Judge," premieres in theaters on Friday, October 10, but he can't tell us what he is working on next. We'll have to keep an ear out.