Iranian state television has dismissed the Oscar-winning film Argo as an "advertisement for the CIA".
Some Iranians believe Argo, which won the award for Best Picture, portrays the aftermath of the 1979 Islamic Revolution in an unflattering light.
Fifty-two Americans were held hostage for 444 days in Iran, but a handful of US Embassy staff were sheltered by the Canadian ambassador. Argo recounts their escape as they used a fake movie as a cover story.
Tehran City Council member Masoomeh Ebtekar, one of the students who occupied the US Embassy and acted as the Iranian students' spokeswoman, told the Associated Press that Argo exaggerates the violence among crowds that stormed the compound in November 1979.
Mr Ebtekbar said director Ben Affleck "goes and shows scenes of a very violent and very angry mob throughout the film", adding, "It is never mentioned that these are a group of students".
The semi-official Mehr news agency called the Oscar "politically motivated" because First Lady Michelle Obama helped present the award, while Iranian culture minister Mohammad Hosseini said the movie has "distorted history".