Complex sentence: Although accounts differ, it seems that Artaud disapproved of Dulac's treatment of his scenario, and the film was quickly overshadowed by "Un Chien Andalou" (1929), written and directed by Luis Buñuel and Salvador Dalí.
Split into simpler sentences: Although accounts differ, it seems that Artaud disapproved of Dulac's treatment of his scenario. The film was overshadowed by "An Andalusian Dog" (1929), written and directed by Luis Buñuel and Salvador Dalí.