Dalkin Groundbreaking environmental-espionage shocker Edge of Darkness (1985) begins routinely enough but then ratchets the suspense to levels that would have turned Hitchcock green with envy. Emma Craven (Joanne Whalley in her first starring role) is a young environmental activist killed in mysterious circumstances. Emma's father Ron Craven (Bob Peck in a star-making performance) will not be silenced and, as a police detective, is uniquely positioned to pursue his own unofficial investigation. He moves from grief to a determination to find the truth, all the while advised and comforted by Emma, but is she a ghost or a manifestation of his haunted psyche? Craven digs deeper, uncovering labyrinthine conspiracy in the nuclear industry and, as the body-count rises, encounters the garrulous CIA agent Darius Jedburgh (a superb Joe Don Baker) with a mysterious agenda of his own. Accompanied by a haunting musical score by Michael Kamen and Eric Clapton, Edge of Darkness builds on the legacy of Tinker, Tailor, Soldier, Spy and Smiley's People to become quite simply the best television thriller ever. On the DVD: Edge of Darkness is presented on a two-disc set with the original six episodes complete and unedited (unlike the previous DVD release). The picture and sound has been improved, too, though the 4:3 image still suffers from the graininess of having been shot on 16 mm film and the sound is still unspectacular mono. The main extra is an excellent new 35-minute documentary, "Magnox: the Secrets of Edge of Darkness", with input from producer Michael Wearing, writer Troy Kennedy-Martin, composer Michael Kamen, stars John Woodvine, Charles Kay and Ian McNeice and archive footage with Bob Peck and Joe Don Baker. A notable bonus for fans of Eric Clapton and Kamen's highly atmospheric score is an isolated music track, unfortunately in mono. Less significant are a routine photo gallery, an alternative edit of the final end title and promotional segments from Breakfast Time and Pebble Mill. A BAFTA Award feature (the series won six) is more engaging, as is a roundtable review from Did You See?. -Gary S. Dalkin.

He finds himself on the run; falsely accused of murder, while also pursuing the dastardly web of spies alluded to in the title. With a plot whose twists and turns match the hilly Scottish terrain in which much of the film is set, The Thirty-Nine Steps combines a breezy suavity with a palpable psychological tension. Hitchcock was already a master at conveying such tension through his cinematic methods, rather than relying just on situation or dialogue. Sometimes his ways of bringing the best out of his actors brought the worst out in himself. If the scene in which Donat is handcuffed to co-star Madeline Carroll has a certain edge, for instance, that's perhaps because the director mischievously cuffed them together in a rehearsal, then left them attached for a whole afternoon, pretending to have lost the key. The movie also introduces Hitchcock's favoured plot device, the "McGuffin" (here, the military secret), the unexplained device or "non-point" on which the movie turns. -David Stubbs.

" Taken solely as a mystery thriller, the movie almost works-despite some gaping holes-mostly just because it keeps moving forward at the breakneck pace set in the book. Brown's greatest trick might have been to have the entire story take place in a day so that the action is forced to keep going, despite some necessary pauses for exposition. Hanks and Tautou are just fine together but not exactly a memorable screen pair; meanwhile, Sir Ian McKellen's scenery-chewing as pivotal character Sir Leigh Teabing is just what the film needs to keep it from taking itself too seriously. In the end, this hit movie is just like a good roller-coaster ride: try not to think too much about it-just sit back and enjoy the trip. -Daniel Vancini, Amazon. com.