Poirot gets quite bad in the last few seasons. After the Flood is just dreadful, and even worse is the episode with Sean Pertwee. Five Little Pigs is also horrible --- despite a few good performances. I believe Blue Train succeeds better than some other episodes because the story has such a simple structure the director couldn't ruin things. The story is simple but the characters are great, and the performances excellent. Elliott Gould does a fine job playing a repellent, ruthless businessman who deeply cares about his daughter. Miss Grey was also nicely played.
All of the later episodes have excellent production values, which unfortunately gave directors the opportunity to overindulge. Blue Train escapes that fate and is rather enjoyable.
All of the later episodes have excellent production values, which unfortunately gave directors the opportunity to overindulge. Blue Train escapes that fate and is rather enjoyable.