By most definitions, director Alejandro Jodorowsky's attempt to adapt Frank Herbert's "Dune" to the big screen in the mid-'70s was a failure. The filmmaker's furiously inventive and imaginative movie never made it to the big screen, but man ... what a trip it would've been, at least certainly judging by Frank Pavich's hypnotically fascinating documentary "Jodorowsky's Dune," showing tonight at 7 p.m. at the UWM Union Theatre.