Can you dislike Al Gore’s green documentary and still like trees? The movie itself doesn’t seem to think so. Gore, on a world tour giving an exhaustively detailed multimedia presentation on global warming, means to clear the air, so to speak, but Truth director Davis Guggenheim is so intent on lionizing Gore for his efforts that the environmental issue takes a back seat. This isn’t a documentary as much as it is a campaign ad (whether Gore decides to run in 2008 or not). Truth at least makes it clear that the current climate changes on our planet are unprecedented – and of our own doing. How can you help? Skip a gas-guzzling trip to see this and plant a tree instead.