Rene Russo is set to play Frigga, Thor's mother, in Kenneth Branagh's big screen adaptation of the Marvel Comic, according to VARIETY [1]. Chris Hemsworth will play the title character with Anthony Hopkins taking on the role of Frigga's husband Odin. Frigga and Odin's other son Loki and chief adversary to Thor will be played by Tom Hiddleston. Natalie Portman is Thor's love interest Jane Foster.
Written by Mark Protosevich and Zack Stentz, the script follows the arrogant Thor as he is cast out of Asgard after spurring a war. He must live with humans in order to learn what a hero truly is.
Paramount is set to put the film in theaters on May 20, 2011.
Links:
[1] http://www.variety.com/article/VR1118012860.html?categoryid=13&cs=1&nid=2562