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Hollywood star Chris Evans has a point to make about being a celebrity in the digital age.

Evans, currently promoting his latest film Gifted, spoke up about his Twitter argument with right-wing activist and former Ku Klux Klan leader David Duke earlier this year.

During one of the promotions, he explained that the heightened scrutiny people in the public eye experience forces them to be more cautious about what they say.

He said, "If you do or say something, it's very easy to take little snippets of that and blast that out there without knowing the whole story, so it enables a lot of people to misbehave."

"As a result, people at the center of it - the actors and the people being watched - have to be a little more mindful, which I think at times can cause them to be a little bit more taciturn, which is in my opinion a bit of a shame."

In his film Gifted, Evans plays Frank, a man raising his niece after his sister commits suicide. His niece's class teacher at the local school realises she is gifted, and wants to have her sent to a special school.

While Frank rejects the offers, the arrival of his mother complicates matters.

Gifted will release on April 7.