MOSCOW, November 28 - RAPSI. The attorneys of Left Front movement coordinator Sergei Udaltsov filed an appeal against the Investigative Committee's decision to open a criminal case over the film, "Anatomy of Protest 2", Sergei Udaltsov wrote on his Twitter page on Wednesday.

The criminal case for preparing to organize mass riots was initiated against Udaltsov, his aide Konstantin Lebedev, and Leonid Razvozzhayev after the TV premiere of the documentary, "Anatomy of Protest 2," and a subsequent investigation of the materials contained in the film.

Udaltsov faces four to ten years in prison. The homes of the suspects have been searched.

The filmmakers of the documentary shown on NTV, which is owned by the state-run Gazprom, claim the opposition is preparing a coup using funds from abroad.

The film shows Udaltsov and his companions allegedly talking with Georgia's then-Parliamentary Defense and Security Committee head Givi Targamadze, who is said to be experienced in planning "color" revolutions in Georgia and Ukraine, as well as mass riots in Belarus.

The investigation into the film established that the voice in the scenes filmed using a hidden camera was Udaltsov's and that the meeting shown in the film took place in Minsk last June.