The actor said he spent "months and months" training for his big bar scene during a Q&A for the movie's SXSW premiere.

The challenge for me was the months and months I spent training to line dance,” said Ben Affleck at the SXSW premiere of The Accountant 2 – “that was my stunt".

O'Connor, who directed both the new film and its predecessor The Accountant (2016), told PEOPLE at the SXSW premiere that Affleck "understands the character so well" and has done