It has been announced that UKTV are making a 90 minute Feature Length Red Dwarf, filming over the next couple of months (confirmed by Craig Charles) and alongside this have also commissioned three 60 minute long retrospective documentaries.
There were some good set pieces and some clever jokes. The laugh track was annoying and I'm going to say that it went on too long. It's a bit like the Porridge or Steptoe movies. The characters work well in a 30 minute, fast moving setting, when it gets drawn out over the length of a movie it loses it's edge.