· Director Davis Guggenheim will be on hand for a Q & A following tonight's ArcLight screening of the global warming documentary An Inconvenient Truth, when he will answer all of your questions about star Al Gore's outrageous demands and diva-like behavior during the film's shooting.
· Madonna drops by The Forum to hoist herself onto a glittering disco-cross while background dancers simulate group sex, and if the spirit so moves her, sing a couple of her fans' favorite songs.
· And after you've watched the Material Mom work up a sweat for a couple of hours, you can get started on your own at the Xanadu on Wheels roller skating post-concert party at The World on Wheels in Venice.