Robert Downey Jr. sat down with Channel 4 presenter Krishnan Guru-Murthy only to stand up shortly after and exit the room.

The interview was going 'well' until he was asked about his drug past. The actor paused for a minute, reflected and then immediately got up. He then brushed past Guru-Murthy and said it was, "Getting a little Diane Sawyer in here."

While trying to promote his latest movie 'Avengers: Age of Ultron', Downey Jr. got increasingly uncomfortable as the questions veered off course. This was the highlight of the exchange:

Downey Jr leaves Channel 4 interview

Quentin Tarantino also faced some difficult questions that he couldn't agree to in a similar setting, and 'lost his cool' a year ago with Channel 4. You can compare his reaction below:

Quentin Tarantino Channel 4 interview