Ben Affleck premiered his new film The Accountant 2 at SXSW over the weekend.

He walked the red carpet with his co-star Jon Bernthal, 48, and his BFF Matt Damon.

The Argo director, 52, wore a cream cardigan over a white shirt and brown tie.

He paired the grandfatherly look with grey pants as he goofed off on the red carpet with Jon and Matt. 

The Bourne Idenтιтy star, 54, arrived to the screening separately from his pal from Boston, pulling up in a black SUV. 

Ben and Jon arrived in a Ford pick-up truck with an Airstream attached to the back.

Ben Affleck premiered his new film The Accountant 2 at SXSW over the weekend

He walked the red carpet with his co-star Jon Bernthal, 48, and his BFF Matt Damon 

Ben talked about why he and Matt are such a good team on the red carpet.

Damon and Affleck co-produced the film via their production company Artists Equity.

Read MoreEXCLUSIVE How Jennifer Garner REALLY feels about ‘rekindling’ romance with Ben Affleck after ‘nanny affair’

‘It’s a beautiful thing. You know, I don’t have very many— none of us really have many friends,’ he told People on the red carpet.

‘You don’t need a million friends. You need a few good ones. And I’m really lucky to have had a friend in Matt,’ Affleck said adding, ‘I’m lucky to have friends like that in my life.’

The Accountant 2 is a follow up to the 2016 film and revolves around Affleck’s Christian Wolff as he tries to solve a case in which ‘an old acquaintance is murdered, leaving behind a cryptic message to “find the accountant,”‘ according to a synopsis.

‘Realizing more extreme measures are necessary, Wolff recruits his estranged and highly lethal brother Brax to help. 

‘In partnership with U.S. Treasury Deputy Director Marybeth Medina (Cynthia Addai-Robinson), they uncover a ᴅᴇᴀᴅly conspiracy, becoming targets of a ruthless network of killers who will stop at nothing to keep their secrets buried.’

Director Gavin O’Connor, who also helmed the first film, sang Affleck’s praises. 

The Argo director, 52, wore a cream cardigan over a white shirt and brown tie

He paired the grandfatherly look with grey pants as he goofed off on the red carpet with Jon and Matt

Ben talked about why he and Matt are such a good team on the red carpet

‘It’s a beautiful thing. You know, I don’t have very many— none of us really have many friends,’ he told People on the red carpet

‘It’s a temptation for actors when they play, say, genius to chew it up and over-act. He never does that. It’s always simple, it’s always honest, it’s always truthful. It’s just beautiful acting,’ O’Connor said.

Affleck’s appearance at SXSW comes a week after he was seen giving his first ex-wife, Jennifer Garner, a tender embrace. 

The parents of Violet, 19, Fin, 16, and Samual 13 were at a paintball outing with their son and his friends.

Ben looked very happy as he chatted with Garner and he reportedly would be open to rekindling things with her if the timing was right.

Affleck and Garner tied the knot in 2005 and divorced in 2018.

Daily Mail learned that Jennifer is ‘deathly afraid of falling back in love’ with Ben – despite being in a relationship with her on/off boyfriend John Miller.

‘She loves Ben but is worried that he will crush her all over again,’ an insider told DailyMail.com.

Jennifer has not been seen with her boyfriend John Miller since February 20th. 

‘You don’t need a million friends. You need a few good ones. And I’m really lucky to have had a friend in Matt,’ Affleck said adding, ‘I’m lucky to have friends like that in my life’

Director Gavin O’Connor, who also helmed the first film, sang Affleck’s praises. ‘It’s just beautiful acting,’ O’Connor said

Jennifer still has ‘trust issues’ with Ben, 52, after he slept with their children’s nanny, Christine Ouzounian, now 37, a decade ago.

‘She doesn’t want to heal another broken heart because it is just too much drama, plus she does not want their kids to see round two of their mom in a bad place with their dad.

‘So much could go wrong if they reunite,’ the insider said.