To kick off its "in-depth, yearlong exploration of the films of 1969," the Northwest Film Forum screens a pair of cultural heavyweights. Easy Rider stars Dennis Hopper, Peter Fonda, and Jack Nicholson along with tons of drugs and rock and an ending that mindfucked an entire generation. Butch Cassidy and the Sundance Kid stars Paul Newman, Robert Redford, bank robberies, and an ending that's an artful mindfuck in its own right. (Northwest Film Forum, 1515 12th Ave, 869-7963. Easy Rider 6:45 pm, Butch Cassidy 8:30 pm, $9.)