Dennis Hopper Double Standard A sense of melancholy hangs over the late Hollywood maverick’s photographs, paintings, sculptures and mixed-media works. Hopper, 74, died in May from complications of prostate cancer. Yet the torpor lies elsewhere. Failed promise characterizes this mostly listless art, however celebrated the actor-director’s movie career. It’s a pity, because some 1960s photographs are rich. Many are good, but few are great; yet sticking to them, the show might have secured his artistic reputation as an incisive if short-lived documentarian. Geffen Contemporary at MOCA, 152 N. Central Ave., L.A. Sun., 11 a.m.-6 p.m.; ends today. (213) 626-6222.