Cuba Gooding, Jr. doesn't seem fazed by Kato Kaelin's criticisms of the FX miniseries, The People vs O.J. Simpson: American Crime Story.

Kaelin, best known for serving as a witness for the prosecution during O.J. Simpson's infamous 1995 murder trial, took to Twitter during the miniseries' debut on Tuesday, bashing the show for what he claims were inaccurate portrayals and calling it #NotADocumentary.

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ET caught up with Gooding, Jr. -- who portrays Simpson in the 10-part limited series -- at the Perry Ellis fashion show in New York on Tuesday night after the series premiere, where he calmly reacted to Kaelin's comments.

"Everybody's going to take away from it what they're going to take away from it," the Oscar winner told ET. "It is what it is."

Gooding, Jr. added that, as an actor, he just wants viewers to "see the work and appreciate the work."

"Don't miss an episode!" he emphasized. "Every script that I read blew me away with some fact that I didn't know."

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One thing Gooding, Jr. does know is style. The dapper 48-year-old star appeared at the Perry Ellis fashion show in a suit created by the popular label.

"His clothes definitely make a statement," Gooding, Jr. said. "I just try to feel confident and look on the outside the way I feel on the inside."

The People vs O.J. Simpson: American Crime Story airs Tuesdays at 10 p.m. ET/PT on FX.