"Lost in Space" purists probably had a problem with the "updated" version of the 60's show. However, the movie basically reworks several of the better episodes from the "more serious" first season. There are remnants of "The Reluctant Stowaway" which introduced the nefarious Dr. Smith, "The Derelict" wherein the crew discovers a seemingly abandoned ship, and "Island in the Sky" featuring the crash of the Jupiter II. Also, the film expanded the role of the Judy Robinson part (Heather Graham) by presenting her as a doctor with skills essential to the success of the mission; the television show never really effectively utilized the character. The film also makes better use of the Maureen Robinson (Mimi Rogers) character who is seen as an equal to her scientist husband played by William Hurt. As played by June Lockhart on the show, the character was often relegated to the background as the damsel in distress. Matt Leblanc is appropriately "macho" as gung-ho pilot Major Don West. The two younger roles of Will and Penny Robinson are handled well by Jack Johnson and Lacey Chabert. Cameos by Lockhart, Angela Cartwright, Marta Kristen, Mark Goddard, and Dick Trufeld (the Robot's voice) are welcome. Gary Oldman as Dr. Smith gives a very understated performance. This is due, perhaps, to the over-the-top performance of the series doctor played by Jonathan Harris. Even with the plot inconsistencies and some "effects" that don't work, the movie is still a fairly enjoyable "journey."