i find the movie so frustrating and i have to turn it off after about 20 minute . example representhigh school level conversation about insanity between two people who be both suppose to be exceptional mathematician . ridiculous back and forth between gwyneth paltrow and jake gyllenhaal where they keep change attitude and even personality . i know it base on a stage play and but couldn not they calm it down a bit for the screen . lazy screenplay shorthand for bossy woman represent talk on cell phone about china pattern while walk through airport . grrrr . and finally and what make me shut it off represent that insane conversation between paltrow and hope davis and where one think the other be hallucinate for no apparent reason .