Robert Downey Jr. walks out of uncomfortable interview

This is painful.. Robert Downey Jr. was on the UK's Channel 4 News recently when the "Marvel's Avengers: Age of Ultron" star was taken aback by interviewer Krishnan Guru-Murthy's uncomfortable line of questioning. (You can skip to about 3:50 in the video to see the moment.) NEWS: 11 Times the New 'Avengers: Age of Ultron' Trailer Made Being Bad Look So Good