Chadwick Boseman Talks Transforming Into Jackie Robinson In 42

Chadwick Boseman arrives at the Los Angeles premiere of '42' held at TCL Chinese Theatre on April 9, 2013 in Hollywood, Calif. -- Getty Premium

Actor Chadwick Boseman had some tough cleats to fill playing Jackie Robinson in "42" - especially getting the look and mannerisms of the iconic baseball legend just right.

"We worked on [the appearance]. Some people say I already look like him, but I didn't see it and I felt like we needed to do some things in terms of hair, and I think the sun helped a little bit," Chadwick told Billy Bush and Kit Hoover on Wednesday's Access Hollywood Live.

The film follows the story of Jackie breaking baseball's color barrier as the first African-American to play in the major leagues.

WATCH: Chadwick Boseman On His Intense Training To Become Jackie Robinson In 42

Chadwick went through intense training to master Jackie's playing style.

"His batting stance is very unique... he has a hitch in his swing," he explained.

Co-star Harrison Ford, who plays Brooklyn Dodgers' general manager Branch Rickey, also had to undergo a physical transformation for the movie.

WATCH: Harrison Ford Plays Ball In 42

"I think when anyone first thought of Harrison Ford playing this role, they were like, 'Naw, it doesn't work,'" Chadwick told Billy and Kit. "[They used] prosthetics, on the ears even, and changed [his] hair, and used a fat suit."

Harrison appeared to have a little fun on set with his plump costume.

"He would come out some days, especially when there were extras there and they would all be a little tense around him because they didn't want to disturb him and they didn't know how to act," the actor recalled. "[Harrison] would walk out while it was silent and say, 'Just to let you know this is a fat suit.' He wanted everyone to know he's still fit."

"42" is in theaters now.

-- Jesse Spero

Copyright 2013 by NBC Universal, Inc. All rights reserved.
This material may not be published, broadcast, rewritten or redistributed.