Video — 1 videodisc (29 min. 36 sec.) : sound, black and white ; 4 3/4 in Sound: digital; optical; mono; stereo; surround; Dolby or Dolby digital.digital; optical; unknown; Dolby digital. Video: DVD; NTSC. Digital: video file; DVD video; region all.
A film begun as a documentary about the liberalization of Czechoslovakia becomes a record of the entry of Soviet tanks into Prague in 1968.