VIDEO : Robert Downey Jr. Walks Out of Interview: 'It's Just Getting a Little Diane Sawyer in Here'

Take note, journalists. Tony Stark does not play around. Robert Downey Jr., a.k.a. Iron Man, recently walked out of an interview with British Channel 4 journalist Krishnan Guru-Murthy, after Guru-Murthy began asking personal questions about Downey Jr.'s "dark history," incarceration and drug abuse. After walking away, the actor tells Guru-Murthy, "It's just getting a little Diane Sawyer in here." No word yet if Guru-Murthy took that as a compliment or insult. Age of Ultron premieres on May 1.??