Robert Downey Jr shows a range of emotions on Tonight Show With Jimmy Fallon after walking out on THAT interview

Robert Downey Jr has not had the easiest time during interviews lately.

In fact, last week he made headlines after storming out of a press junket chat when a journalist quizzed him about his drug and prison past.

But that was far from the case on Monday as the 50-year-old displayed a different range of emotions while taking on an acting challenge with Jimmy Fallon on the Tonight Show.

Scroll down for video 

So emotional! Robert Downey Jr displayed a different range of emotions on Monday while taking on an acting challenge with Jimmy Fallon on the Tonight Show

So emotional! Robert Downey Jr displayed a different range of emotions on Monday while taking on an acting challenge with Jimmy Fallon on the Tonight Show

The Iron Man actor's exuberant participation revealed that this was a sit-down that was far more to his liking. 

The host explained in the rules that they will perform an 'emotional interview' in which they are 'given an emotion or situation to act out' while speaking to each other. 

For their first topic, they had to emote an 'annoyingly philosophical' manner. 

That's more like it: A week after a journalist annoyed him with personal questions, he was in much better spirits showing his humor alongside Jimmy Fallon

That's more like it: A week after a journalist annoyed him with personal questions, he was in much better spirits showing his humor alongside Jimmy Fallon

'When did you know that you wanted to be an actor?' Fallon began.

'To know is to understand and the question is already answered in its asking,' Downey responded with deadpan delivery.

Fallon quipped: 'Life is like a clam, when it opens you've got to grab the gooey stuff.'

Moving on to the next category, the comedic-actors had to convey a conversation described as: 'finishing for compliments.'

Happy as a clam! Jimmy bestowed his 'philosophical' wisdom about clams

Happy as a clam! Jimmy bestowed his 'philosophical' wisdom about clams

Shenanigans: The comedic-actors put their improv skills to the test

Shenanigans: The comedic-actors put their improv skills to the test

Immediately eliciting laughs, Fallon boasted: 'I just won a bunch of Emmys.'

'That's enough out of you!' Downey interrupted. 

Changing the subject to himself, Downey said: 'When I bought this suit, I didn't know about the fit. I wondered if the tailor did his job or not.''

Keeping his cool: The Iron Man star was in good company with host Jimmy

Keeping his cool: The Iron Man star was in good company with host Jimmy

While conveying the category titled 'total lack of confidence,' Fallon told his guest: 'You should be asking questions, I should go home.'

He added: 'You should be hosting the show and I should have my underwear tailored. I have a tiny penis.'

The hijinks continued with the final category, of which Robert had to act out what it was like to not 'know what a car is.'

The movie star explained, rather hilariously: 'I was coming down here in this, uh, black thing with wheels.'

No winner was crowned, but the chat was a triumph for Downey - who became flustered and then bolted from his seat last week in the middle of an interview with London's Channel 4.

Annoyed: Robert Downey Jr stormed out of an interview with Krishnan Guru-Murthy of London's Channel 4 after the interviewer pried with too many personal questions

Annoyed: Robert Downey Jr stormed out of an interview with Krishnan Guru-Murthy of London's Channel 4 after the interviewer pried with too many personal questions

Journalist Krishnan Guru-Murthy shifted their conversation about his super hero movie The Avengers: Age Of Ultron into a dramatic probe of his history with drugs and prison.

When the interviewer pried further - asking him to recall past trauma with his father, it reached a tipping point. 

Downey got up and said: 'I'm sorry, I really don't... what are we doing?' before walking out of the interview.

He has stated that he has been sober since July 2003, crediting meditation, yoga, 12-step recovery programs and the support of his second wife, film producer Susan Downey, for his inner-peace.

The comments below have not been moderated.

The views expressed in the contents above are those of our users and do not necessarily reflect the views of MailOnline.

We are no longer accepting comments on this article.

Who is this week's top commenter? Find out now