'Eternals' star Lia McHugh reacts to being 1 of the MCU's youngest superheroes

The massive Marvel movie "Eternals" is just hours away from flying onto the big screen.

The film introduces a handful of the most powerful beings in the universe, all with unique powers. One of them is Sprite, played by 14-year-old actress Lia McHugh. McHugh described Sprite to ABC News as "an illusionist [who] can make you see things that aren't there and that spans in really cool ways."

"You know, when I figured out her powers and then once I read the script, I thought it was really cool -- the creative things that they had her do with her powers that I would have probably never thought of," McHugh said.

If you think a superhero that young sounds a little unusual, McHugh says you're not alone.

"My entire family was just absolutely shocked," she said. "And one of the biggest questions that people ask me when I say that I'm in a Marvel movie, they're like, 'Do you speak?' Which I think is pretty funny. I mean, no one expects a kid to be a superhero [and] have a bigger part in a Marvel movie."

"Eternals" features an ensemble cast that also includes Angelina Jolie, Salma Hayek, Gemma Chan, Richard Madden, Kumail Nanjiani, Brian Tyree Henry, Barry Keoghan, Lauren Ridloff, Don Lee as the titular group of superheroes. With so many new characters, McHugh said "everyone has someone that they can relate to, whether it be the diversity [or] the age."

"I think it's really incredible how Marvel was able to introduce 10 new characters, but really have the audience thoroughly understand them," she added.

"Eternals" opens nationwide on Friday.

Disney is the parent company of Marvel, ABC News and "Good Morning America."