Just watch the Suchet versions

Rating: 2/10 (27 January 2019)

So, I don't necessarily mind adjustments made to source material. Sometimes, what makes sense in a book doesn't quite translate on screen.
But I do mind what Branagh did to Poirot as a character.
I also really dislike the ending which hints at Death On The Nile, promptly spoiling half the story.
I would suggest watching the Poirot series featuring David Suchet if you are keen on "who done it" detective stories, as Suchet was by far the closest, most accurate depiction (Ustinov was too fat and over the top for the character).