Brad Pitt Makes First Post-Twins Public Appearance ' With George Clooney!

Brad Pitt left Angelina Jolie and the kids at home Tuesday night. He joined buddy George Clooney at a Not On Our Watch fundraiser -- held on Venice's Giudecca island -- which aids victims in the Darfur region of Sudan and the cyclone in Myanma. It was Pitt's first public appearance since he and Jolie welcomed twins Knox Leon and Vivienne Marcheline in July. See photos of Brad Pitt through the years. Expect to see more Pitt and Clooney action in Venice. The two are expected to walk the red carpet Wednesday for their Coen Brothers crime comedy Burn After Reading, which opens the Venice Film Festival. See photos of famous Hollywood bromances. It's not all work and no play for Pitt while in Venice. On Tuesday, he took sons Maddox (who sported a blue mohawk) and Pax for a speedboat ride. See photos of Maddox and Angelina Jolie.