ik know it be impossible to keep all detail of a book in a movie . but this movie have change nearly everything without any reason . furthermore many change have make the story illogical . a few example represent 1 ) in the movie paul renauld really meet poriot before he die ( in the book poirot only get a letter ) and tell him he be afraid to be kill . this be completely stupid because if renaulds plan would have succeed and poirot would have know that the dead man would not have be renauld . ( poirot be in the morgue when mr renauld identify the victim ) . 2 ) the movie have combine two person into one . cinderella have be remove by the movie . the girl hastings fall in love with and the ex girlfriend of jack renauld be one person in the movie . why for god sake . 3 ) hastings find the victim cause he be such a bad golf player . totally unfunny and stupid . 4 ) the movie tell secret much too early ( for example at the very begin ) . so you know thing you shouldn not know . 5 ) the murderer get shoot at the end by a person who doesn not exists in the book . perhaps because the person ( cinderella ) who stop the murderer do not exist in the movie . 6 ) the book be very complex . the movie take only about 90 minute . sure it be difficult to include all the necessary detail but it be impossible if you include stupid thing which be not in the book and have no meaning ( e. g. bicycle race ) .