Actor Liam Hemsworth has pulled out of an appearance at the world premiere of his new movie Empire State next week (begs18Mar13), amid ongoing reports his relationship with fiancee Miley Cyrus is on the rocks.

The Hunger Games hunk has been spending time with his family Down Under recently as rumours continue to swirl over the state of his romance with Cyrus, who has remained in the U.S., and now it has emerged that he has chosen to skip the Gasparilla International Film Festival in Tampa, Florida on Tuesday (19Mar13), when he was expected to promote his latest release.

He will be extending his vacation instead.

Cyrus fuelled split reports earlier this month (Mar13) by stepping out without her engagement ring, just days after blasting a tabloid report suggesting she had called off her wedding.

Hemsworth will join co-stars Dwayne Johnson and Emma Roberts on the absent list at the film festival, but Nikki Reed, Shenae Grimes and Kristen Stewart's ex, Michael Angarano, are expected to attend.