They might be two of the biggest stars in Hollywood but Chris Hemsworth and Elsa Pataky's three young children don't have a clue.

Instead, according to Pataky, the couple's three children think Hemsworth is an actual real life superhero actor after seeing him in character as Marvel character Thor.

"They don't know who is Thor and who is papa … and (that) he doesn't go (around) with the hammer all the time and things like that," Pataky told news.com.au.

"They don't understand what is the TV yet, and you (can) do that for work. Kind of my oldest one (six-year-old India Rose) is getting it, but sometimes (the children ask Hemsworth) 'What are you going to be, papa or Thor?' and (he says), 'Like both.'"

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While the family spends most of their time in the "bubble" of Byron Bay, Pataky said it's hard for the three children not to spot Hemsworth on TV and advertising when they travel.

"When we go everywhere they are like (pointing out) papa, papa, papa … and I'm like, 'I'm there somewhere,'" she joked.

"And it's like do you work mamma? Because you say you go to work all the time and I don't see you anywhere."

But with Pataky's starring role in Netflix's first Australian series Tidelands part of a massive marketing push, it's been her face her children have now recognised in photos and billboards.

Pataky stars as Adrielle Cuthbert in the supernatural crime drama as leader of the Tidelanders, a half human, half siren who will stop at nothing to get when she wants.

Shaking up Adrielle's plans is the arrival of Cal McTeer (Charlotte Best) the daughter of the town's crime kingpin who returns to Orphelin Bay after 10 years in juvenile detention.

Filmed in Brisbane and on the Gold Coast just a stone's throw from Byron Bay, Pataky said the role was "meant to be".

Elsa Pataky and Chloe De Los Santos star in Tidelands, the first Australian filmed series on Netflix. Photo / Supplied
Elsa Pataky and Chloe De Los Santos star in Tidelands, the first Australian filmed series on Netflix. Photo / Supplied

"I read the story I loved it, the script was amazing, the characters were great, such strong women," Pataky said.

For Home And Away's Best, it was the chance to get to perform most of her own stunts and play a lead female character alongside a strong male cast that made Tidelands the role of a lifetime.

"I think audiences are smart they can see when you're dumbing down the men to make it (better for female characters)," she said.

"All the characters are so strong and have their own vulnerabilities and weaknesses … you see it as they go along they are all searching for the same thing."

Also fun for both of them to tackle was their characters' lack of sexual inhibitions which becomes apparent in Tidelands' racier scenes.

Best said she found her nudity scenes less scary and "more natural" than past acting projects.

"It was great to discover those things and it would be great if people were that free! I actually love it," Pataky said.