Did Brannagh actually bother reading Christie?

Rating: 4/10 (13 March 2018)

'Strange small man with an oval head, and shiny green eyes'.. Thats Poirot. Suchet perfected it. Kenneth Brannagh really??, whilst I thought he acted reasonably well, better than Finney actually, cmon some resemblence to the iconic character is surely needed?
Running all over the train, on top, unde??, what happened to Poirot letting his brain cells doing the work? If this wasnt an adaptation it would have been enjoyable, but if you are a Poirot fan, this is just insulting.