Robert Downey Jr.

Kimmel's monologue garnered strong reactions from the internet.

Stars are coming to the defense of Chris... but some fans aren't happy.

From Selena Gomez ending a live feed to Robert Downey Jr. storming off, check out 25 uncomfortable and awkward celebrity interview moments.

Last week, Robert Downey Jr. revealed that Sherlock Holmes 3 will begin filming this year, with Guy Ritchie returning to direct the long-developing sequel. Lo and behold today’s update that a new screenwriter has been tapped to rewrite the script — because when Robert Downey Jr. says something is happening, he enters into a binding verbal contract with the universe and essentially wills his thoughts into existence.

With Robert Downey Jr. and Chris Evans promising a big surprise on Jimmy Kimmel Live, we knew it had to be something special — that something is the first trailer for Captain America: Civil War. Not a teaser, but an actual, full trailer, dramatically highlighting the growing divide between Steve Rogers and Tony Stark, which will divide the Avengers and pit them against one another in what could be Marvel's most epic film yet.

Robert Downey Jr. was none-too-pleased when a U.K. journalist pressed him during an 'Avengers' interview. In fact, the Oscar-nominated actor walked off-camera!

There’s a lot to like about Avengers: Age of Ultron, but the coolest thing about it is the way it reclaims the comic book part of the phrase “comic-book movie.” Rather than using these characters to do something “edgy” or “adult” or “important,” or sanding down their quirkier edges to appeal to as broad and mainstream an audience as possible, Age of Ultron doubles down on its source material’s geeky origins.

Robert Downey Jr., presenting a bionic Iron Man arm to an exceedingly well-dressed 7-year-old fan named Alex, who was born with a partially developed right arm. The arm wasn’t built by Tony Stark, but rather by a college student named Albert Manero who makes low-cost 3D-printed bionic limbs for children. But Downey received the honor and pleasure of presenting him with his new arm, and comparing it to one of his own Iron Man suits.

Those who tuned into the newest episode of Marvel's 'Agents of S.H.I.E.L.D.' tonight were rewarded with a little treat: brand new footage from 'Avengers: Age of Ultron' to go with that pretty sweet trailer that dropped just last week.

Robert Downey Jr. may be relatively new to Twitter, but he's taken to it like a duck to water as he's made fans happy by tweeting a photo from the set of 'The Avengers 2.' Downey has a penchant for charming self promotion that would put even Tony Stark to shame.

Robert Downey Jr. and Mel Gibson first worked together twenty-four years ago in the 1990 film 'Air America' and have maintained a friendship ever since. Which may be why there's a rumor that Downey Jr. is trying to pull strings and get both Gibson and Jodie Foster into the Marvel universe, and possibly into 'The Avengers: Age of Ultron.'

Things are going well for the super-heroic hunks of Hollywood, with 'Iron Man' portrayer Robert Downey Jr., White House savior Channing Tatum and Wolverine himself -- Hugh Jackman -- landing the top three spots on the list of Tinseltown's highest paid actors.