Watch Ben Affleck Line Dance in ‘The Accountant 2’

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Ben Affleck kicks up his sneakers on the dance floor in this spirited sequence from “The Accountant 2.”

Affleck’s character, Christian Wolff, an autistic C.P.A., has gone with his brother, Braxton (Jon Bernthal), to a country western bar. Using calculations, Christian quickly figures out the pattern of a line dance and joins in.

Discussing the scene in an interview, the film’s director, Gavin O’ Connor, explained that the scene was meant to accomplish several things as the film moves deeper into the second act. He added, “Bill Dubuque, our writer, and I wanted to abandon the plot and just make a hard left turn and go spend time with the brothers in a social environment so we can deepen their relationship while also allowing Christian the opportunity to connect with a woman in a way he’s never done before.”

This leads to a moment in which Braxton expects his brother might make a fool of himself, but things turn out differently.

“It dramatizes his mathematical brain, because you watch him start to look at the footwork and it all starts to compute very quickly,” O’Connor said in the interview.

He also said Affleck attended several rehearsals to get the moves right: “We had a choreographer named Jennifer Hamilton who was wonderful, and before we got to the rehearsal stage, she was presenting me with a bunch of different ideas, because there are a lot of variations on line dancing, and then we narrowed it down.”

They worked out the choreography with the dancers before bringing Affleck in. “Then Ben just did his thing,” O’Connor said. “Christian didn’t have to be great. He just had to do it. So it was never important that he lit the place on fire.”