Booboo Stewart: 'Immortals' Premiere with Fivel!

Booboo Stewart steps out at the premiere of Immortals held at Nokia Theatre L.A. Live on Monday night (November 7) in Los Angeles.

Joined by sister Fivel, the 17-year-old actor came out to support his Twilight costar Kellan Lutz, who stars as Poseidon in the film.

PHOTOS: Check out the latest pics of Booboo Stewart

Over the weekend, Booboo took time out to attend the Twilight Convention in Los Angeles.

“thanks to all the fans that came out to the @twilight convention this weekend hope i see everyone at our @knottsberryfarm show nov 12″ he tweeted.

10+ pics inside…