Joe Clarke, 32, is living his dream.The North Liberty filmmaker packed up his car and headed west three years ago to make movies in Hollywood. And Hollywood is noticing.About two years in the making, his latest full-length feature film, “Alta Vista,” is traveling the indie film festival circuit, landing spots in one of his favorite festivals, as well as one of the industry’s most prestigious festivals, both in April.The film is a departure from Backrow Studios, which Clarke helped establish in the Corridor in 2010 with friends from the University of Iowa.