The Summer of Love. Los Angeles Filmforum commemorates the 50th anniversary of the radical cultural upheaval with an assortment of mind-blowing (as intended) short underground films. These films used a variety of tactics to manifest or assist with perceptual expansion and experience found in sex, drugs, music, and art.  Some pursue idea of psychedelia (Third Eye Butterfly; Doppler Effect: Version II) others express openness in sexuality (Fuses); and others try to capture some of the spirit of group revelry, drug-taking and celebration (Letter to D.H.