'Do you want to fight me?' Ben Affleck and Jimmy Fallon almost come to blows on The Tonight Show (but it's all a part of Kid Theatre) 

Ben Affleck and Jimmy Fallon almost came to blows on Thursday's Tonight Show.

Luckily, they both remembered sacred The Accountant's Oath and hugged it out instead.

The drama was scripted by a seven-year-old boy named Chris, as part of the shows popular Kid Theatre segment, which sees children write screenplays for films based on the title alone.

Stage fight: Ben Affleck and Jimmy Fallon almost came to blows on Thursday's Tonight Show

Stage fight: Ben Affleck and Jimmy Fallon almost came to blows on Thursday's Tonight Show

The fight almost broke out when Steve (Fallon) and Roger (Affleck) came to loggerheads about which number was the best number.

After declaring their unifying love for digits, they both agreed to shout out their favourite number... but things took an ugly turn when the former chose eight, and the latter chose 41.

'What's so great about eight?' Roger demanded.

'What's so great about 41? Steve spat back. 

'Do you want to fight me?' Roger challenged.

Fists raised, the two advanced on each other, before Steve had a sudden change of heart.

Looking sharp: The drama was scripted by a seven-year-old boy named Chris, as part of the shows popular Kid Theatre segment, which sees children write screenplays for films based on the title alone

Looking sharp: The drama was scripted by a seven-year-old boy named Chris, as part of the shows popular Kid Theatre segment, which sees children write screenplays for films based on the title alone

close one: The fight almost broke out when Steve (Fallon) and Roger (Affleck) came to loggerheads about which number was the best number

close one: The fight almost broke out when Steve (Fallon) and Roger (Affleck) came to loggerheads about which number was the best number

'Wait!' he shouted 'We're accountants! We promised never to fight other accountants.'

'Of course,' Roger conceded. 'The Accountants Oath.'

The reunited friends then recited the code in unison: 'We, the accountants of America, promise to never fight other accountants, and most importantly, all numbers are the best.'

Earlier scripts saw Affleck play Fallon's unloving father, too busy working 'at the stock market' to play sports with his son, until he caved and hugged him for five seconds, as they both 'counted the numbers out loud'.

Reunited: They only avoided the fight when they remembered The Accountant's Oath, which they recited in unison: 'We, the accountants of America, promise to never fight other accountants, and most importantly, all numbers are the best.'

Reunited: They only avoided the fight when they remembered The Accountant's Oath, which they recited in unison: 'We, the accountants of America, promise to never fight other accountants, and most importantly, all numbers are the best.'

Drama: Earlier scripts saw Affleck play Fallon's unloving father, too busy working 'at the stock market' to play sports with his son, until he caved and hugged him for five seconds, as they both 'counted the numbers out loud'

Drama: Earlier scripts saw Affleck play Fallon's unloving father, too busy working 'at the stock market' to play sports with his son, until he caved and hugged him for five seconds, as they both 'counted the numbers out loud'

In the first scene of the evening, Affleck played an 'accountant astronaut' opposite Fallon's 'astronaut accountant', who ran into each other on the moon after realising their separate dreams of pursuing a career that used both calculators and space helmets.

The subject of children in the film industry had been broached earlier in the night, when the host dug up an old clip of a 12-year-old Ben in his first ever TV role: an educational show called The Voyage of the Mimi.

'That was before I had testicles,' he joked at his high pitched voice, adding that thankfully he didn't 'go on crack and go crazy' like most child stars. 

Bright future: The subject of children in the film industry had been broached earlier in the night, when the host dug up an old clip of a 12-year-old Ben in his first ever TV role: an educational show called The Voyage of the Mimi

Bright future: The subject of children in the film industry had been broached earlier in the night, when the host dug up an old clip of a 12-year-old Ben in his first ever TV role: an educational show called The Voyage of the Mimi

Impressive line-up: Sarah Paulson also appeared on the talk show to promote American Horror Story

Impressive line-up: Sarah Paulson also appeared on the talk show to promote American Horror Story

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