text_a: a weird little movie that 's amusing enough while you watch it , offering fine acting moments and pungent insights into modern l.a. 's show-biz and media subcultures .
text_b: while insomnia is in many ways a conventional , even predictable remake , nolan 's penetrating undercurrent of cerebral and cinemantic flair lends -lrb- it -rrb- stimulating depth .