Kristen Stewart was all smiles during her appearance at the Venice Film Festival on Saturday. The actress flaunted major leg in an all-black ensemble as she waved to onlookers and posed for pictures on the red carpet. In August, Kristen had a supercute reunion with her Twilight costar Taylor Lautner at the LA premiere of her film American Ultra . That same month, Kristen grabbed headlines when she opened up about her sexual preferences in Nylon's September issue, saying, "Google me, I'm not hiding."