Al Gore's film about global warming, An Inconvenient Truth, has made quite a splash in the States and will be screening in Australia.
It's showing this weekend as part of the Sydney Film Festival and then at the Melbourne and Brisbane Film Festivals. In Sydney it's showing at the State Theatre on Saturday 10 June at 12:10pm. More details here. (I'll miss it as I'm in Canberra this weekend).
Its general release is unfortunately not scheduled until 14 September. (Why are we still four months behind other countries for cinema releases?)
Another environmental film showing at the Sydney Film Festival is The Last Valley, a doco about the struggle to save the last old-growth rainforest in East Gippsland, told from the point of view of protestors and loggers. Sounds interesting and the director will be there for a question session afterwards. Check it out on Wednesday 21 June at 5 pm at the State Theatre.
Update 9/11/06: I saw the film and my thoughts are here: An Inconvenient Truth: My thoughts