Robin Wright Penn, Keanu Reeves and Julianne Moore will be walking the red carpet at Roy Thomson Hall prior to the 6:30 p.m. gala screening of their new movie, The Private Lives of Pippa Lee. At 10 p.m., Michael Cera, Keanu Reeves and Naomi Watts will be among the guests at the InStyle magazine party at Windsor Arms. Sarah McLachlan and Deborah Cox will perform at the Cinema Against AIDS Benefit Party for amfAR and Dignitas International black tie gala beginning at 6:30 p.m. with a champagne reception at the Carlu at 444 Yonge Street, 7th floor, with proceeds going to raise funds for AIDS research. Attendees include Michelle Yeoh, Sarah Ferguson and Stanley Tucci. Tickets begin at $1,000 and includes a dinner by chef Jamie Kennedy. If you're looking for something a little less pricey, free programming begins at noon at Yonge-Dundas Square when Monterey Pop is plays a concert, followed by the silent film Robin Hood at 3 p.m., then at 7 p.m. get in on a free swing dance lesson. Stick around for a 9 p.m. concert featuring Aelita with the Galaxy All-Star Orchestra.