On Oct. 20, HBO will be airing a finale special entitled The Final Shot: A Farewell to Boardwalk Empire, which will follow the actors as they look back at the prohibition drama's five-season run.

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The network released a preview for the special on Sunday (featured below), featuring a few clips from interview with Steve Buscemi (Nucky Thompson), Kelly Macdonald (Margaret Schroeder), and Stephen Graham (Al Capone).

In the beginning, everyone felt the pressure and wanted to be their best for the pilot. Macdonald remembered just wanting to make it through the first day of shooting.

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"The first day on set I didn't have any dialogue," she admitted. "And I thought 'okay, I can get through the first day'."

As for Buscemi, he was surprised to be there at all. Known for memorable supporting roles in films like Fargo and Reservoir Dogs, he never thought he'd score the lead on the highly anticipated HBO series.

"I said, 'I know you're still considering other actors but I just really appreciate you thinking of me'," explained the actor when he spoke with creator Terence Winter.

"He almost talked himself out of it," laughed Winter in describing that same call, "But I said 'no, this is the call, we want you to do it'."

Boardwalk Empire continues on HBO with its fifth and final season Sundays at 9 p.m. ET/PT.

The Final Shot: A Farewell to Boardwalk Empire will air on HBO Monday, Oct. 20 at 10:30 p.m. ET/PT.