By: Jessica Goddard Bong Joon-ho’s Okja is not only packed with insight, imagination, and action, but mesmerizing visual effects.  While this movie bounces around tonally, it’s consistently engaging and gripping.  There are moments of camp and farce and exaggeration (cough cough – Jake Gyllenhaal – cough) but they are fun and mostly harmless.  The premise is well-conceived, and the frequent use of subtitles under Korean dialogue is never fatiguing.