Movies
The news indicates that the Kenneth Branagh-directed film is on track to begin shooting in early January.
Posting on Twitter, Alexander, who will play Sif, said: "Excited to start rehearsals next week!"
Thor's cast includes Chris Hemsworth in the title role, Natalie Portman (Jane Foster), Kat Dennings (Darcy), Anthony Hopkins (Odin), Idris Elba (Heimdall) and Stellan Skarsgård.
According to Production Weekly, Marvel has chosen to give the movie the shooting name of Manhattan.
Thor is due to be released on May 20, 2011.
Movie Reviews
Star Wars: Episode I - The Phantom MenaceWe revisit George Lucas's much-maligned Star Wars prequel The Phantom Menace.
At the Movies
John Williams's top 10 movie scoresAs John Williams celebrates his 80th birthday, we take a look at his 10 best movie scores.
Movies Interviews
Daniel Radcliffe talks 'Woman in Black'The actor talks to Digital Spy about his first post-Potter outing.
Box Office Charts
'Chronicle' leads UK box officeSuperhero drama Chronicle leads the UK box office ahead of Journey 2.
