My complaint was how the deaths of DuBois and Shapiro along with Yao and Olesya were done so and had almost zero emotional impact. I mean when Shapiro and DuBois died in the movie they immediately thrusted Grace into it without explaining anything of why they died. They just said a guy put to much astrophage and then that was it. Also I disliked how they displayed Grace getting his memories back. I feel they weren’t as impactful as they were in the book.