Liam Hemsworth: 'Thor' Premiere with Brother Chris!

Liam Hemsworth suits up for the premiere of Thor held at the El Capitan Theatre in Hollywood on Monday night (May 2).

The 21-year-old Aussie actor walked the carpet with his family in support of big brother Chris, who plays the title character.

Once upon a time, the two brothers were actually competing for the title role!

But no worries, Liam just nabbed another coveted role — Gale in The Hunger Games.

10+ pics inside of Liam Hemsworth…