An injury Charlize Theron suffered on the set of Paramount Pictures/MTV Films' "Aeon Flux" has forced production to shut down on the sci-fi actioner for an indefinite number of weeks. The delay also could have a domino effect on Theron's next project, Warner Bros. Pictures' "Class Action," which is scheduled to start filming early next year.

Theron had been working in Berlin, where production on "Flux" began Aug. 16. The injury happened while Theron was performing stunts in wire-hanging action, according to unit publicist Jeanmarie Carrasco, quoted in an Associated Press report.

Asked for further detail, Carrasco only would say: "She sustained an injury, and we are closing down for a few weeks so that she can be 100% when she returns. She wasn't hospitalized, but I can't comment on anything specific about her injuries." Carrasco said no cameras were rolling at the time of the incident.

Theron's rep, PMK/HBH's Amanda Silverman, acknowledged that the actress had sustained an injury, saying, "She's resting and hopes to be back to work soon."

According to sources close to the film, Theron hurt her neck while performing stunts on a trampoline late last week. She was taken to a hospital for examination and flew back Tuesday to Los Angeles, where she is expected to meet with her personal doctors to further evaluate the situation.

Because it is anticipated doctors might want to monitor Theron's condition over the next several weeks, the production will not resume for a minimum of six weeks, sources said.

Paramount spokesperson Jasmine Madatian would not comment on the extent of Theron's injury or the exact circumstances under which it occurred. She would not say how long the production could remain shut down. Silverman said, "The time off is still to be determined."

"Aeon Flux," budgeted at less than $55 million, is considered a physically demanding project for Theron, who stars as a top assassin who is part of a rebellion sent to kill a government leader. Based on Peter Chung's futuristic MTV animated series, the film is being produced by Gale Anne Hurd, David Gale, Gary Lucchesi and Greg Goodman.

Because of the injury, there is a potential that Theron's upcoming project could be affected. Following "Aeon Flux," the Oscar-winning "Monster" star is due to topline Warners' "Class Action" for helmer Niki Caro. That project, scheduled to start early next year, now could be pushed back to accommodate Theron's recovery and any delays in the remaining "Aeon Flux" schedule. "We are waiting three weeks to evaluate her condition and at that time, we will decide," a Warners spokesperson said in reference to "Class Action."

Theron had planned to attend the upcoming Toronto International Film Festival, but now that, too, is in doubt. The actress was due to visit Toronto for the world premiere of John Duigan's "Head in the Clouds," in which she stars opposite boyfriend Stuart Townsend and Penelope Cruz. Silverman said she's not sure if Theron will attend.