"Ninja Assassin" training videos released

Videos of Korean superstar Rain training for his film "Ninja Assassin" have been released, according to producer Warner Brothers Korea on Wednesday.

The video shows the actor receiving martial arts training for the combat scenes in the movie, which the filmmakers say are "not special effects" .

The action scenes required to the star and the whole team of actors to master martial arts and acrobatics, taught by the martial arts experts from the film "300".

The video also includes interviews with producer Joel Silver and director James McTeigue, explaining how the film was made and shows footage of Rain in various training sessions.

The Korean singer and actor played the lead role Raizo in the Hollywood action flick, hyped as one of the 50 most anticipated films of the year by U.K. newspaper The Times and one of the top 10 movies selected by the San Francisco Examiner.