Channel4.com has some interesting behind the scenes interviews with the cast and crew of Lost. I don’t know if these videos are old or not, but I hadn’t seen them before so I’m sure there are others out there who haven’t either.
Among the videos you will find interviews where the cast members talk about their characters, a short video about Dominic Monaghan’s obsession with bugs and even a 22 minute long “On Location Report”.
This is one of the videos:
