Natalie Portman's representative has brushed off tabloid reports the star is dating Australian actor Chris Hemsworth.
The Star Wars beauty was alleged to have embarked on a romance with Hemsworth, who appeared in Star Trek, after they were cast together for the forthcoming comic book adaptation Thor.
A source told America's Star magazine, "Sparks have been flying since their first meeting. He seems to have a crush on her, and she clearly loves the attention."
But Portman's spokesperson has dismissed the claims, telling, "This is not true."