MOSCOW, October 9 - RAPSI. Oposition activist Sergei Udaltsov says he has been called in for interrogation as part of the probe into the certain facts portrayed in the film "Anatomy of Protest-2".

"I had a phone call from the Investigative Committee and I was invited to come in for an interrogation in connection with the 'Anatomy of Protest' film. It is not a criminal case yet, they are just looking into the facts," Udaltsov told RIA Novosti.

He added that the interrogation will be held on October 10 at 3:00 p.m. "I am happy to go there as I have nothing to hide. I have not organized any coups, either in Kaliningrad or anywhere else," he stressed.

The Investigative Committee spokesman has confirmed that Udaltsov has been summoned for an examination into the facts of the film.

Udaltsov also said he will soon be suing NTV, the channel that aired the documentary.

Earlier, the decision to look into the allegations made in the film was made by the Prosecutor General's Office. According to Udaltsov, the opposition does not plan to use force as described in the film, but will be stepping up its peaceful protest activities and be working fast to hold another March of Millions in early December.

United Russia lawmakers have also called for the film's review and are planning to file a request to the law enforcement authorities in this regard early next week.

The film was broadcast last Thursday on NTV, which is owned by state-run gas giant Gazprom, and provoked a strong public reaction. The film makers allege that the opposition is plotting a coup d'etat using funds from abroad. The film shows a conversation between Udaltsov, and his supporters with Georgian parliamentary Defense and Security Committee head Givi Targamadze, who allegedly has experience in organizing the "color revolutions" in Georgia and Ukraine, as well as mass riots in Belarus.

The first part of the film aired in March. The filmmakers claimed that some people are paid to attend the opposition rallies. The film showed the "White Ring" opposition event on February 26, when thousands of people wearing white ribbons, white balloons, or other white items, joined hands with each other all along Moscow's Garden Ring, a large boulevard that circles the city center.