The Australian actor brothers are highly bankable Hollywood heartthrobs, both starring in blockbuster movies in recent years.

But Chris, who stars in The Huntsman: Winter's War, shares that he has been confused with his brother on the red carpet ever since he first landed his big roles.

"The first time was at the Star Trek premiere," Chris recalled during an interview on BBC's The Graham Norton show. "It was the first big thing I had done and I remember thinking, ‘Wow, this is the beginning of my career,’ and a bunch of people were there and they are like, ‘Chris, Chris, Chris,’ and then ran straight past me to Liam."

Chris, who is six years older than Liam, continued, "I thought he was going to correct them but he just winked at me and started signing autographs! That was my first little brush with fame!”

While Chris, 32, is known for playing fantasy roles, such as Marvel muscleman superhero Thor, Liam has built a reputation as a romantic leading man.

He admitted the issue of mistaken identity is getting worse now he's grown a beard for his latest role in The Huntsman, as his Hunger Games star brother is also known for sporting trademark designer stubble both onscreen and off.

Chris also revealed to Graham that he had a lot of fun working on his new role as Eric in The Huntsman film alongside Jessica Chastain, Emily Blunt and Charlize Theron.

“It was great – there was a lot less testosterone! It was a different chemistry but a lot of fun with three incredibly talented and intimidating women – I loved it,” the star enthused.

The Huntsman: Winter's War is out on general release in the U.K. on April 4 (16) and in the U.S. later this month (22Apr16). Chris appears on BBC One's The Graham Norton Show, alongside co-star Jessica Chastain, airing in the U.K. this Friday (01Apr16).