"It was a 16-week shoot for the Torchwood season — longer than most feature films. But the intensity keeps you focused on the work."
Euros Lyn quoted on Wired.com about the intensity of shooting 5 episodes of Torchwood in one block, which he describes as an "endurance test."
Certainly with the plot appearing to be a bit more complex than the usual monster/freak of the week setup, Torchwood: Children of Earth appears increasingly to be what it always should have been – mature drama rather than the teenagey "adult" nonsense that it was originally aired as in Series 1.
Bisexual encounters with sexy female aliens are fair enough, but without some real threat and (excuse the pun) meat on the bones, it’s all meaningless. Torchwood: Children of Earth has the potential to undo all of the bad memories from Torchwood Series 1 and 2:
"For the first time, we’ll see Torchwood facing a threat from home while they’re also investigating an alien invasion. When they try to discover why all the children in the world have suddenly stopped at the same time, Torchwood also has to deal with human beings who are trying to hide a past mistake."
If you haven’t seen it already, here’s the Torchwood: Children of Earth trailer: