PLOT & Character Motivation:
* I didn't really begrudge the whole 'Mia's a junkie' plot until they dropped it twenty minutes into the movie. Once Olivia's infected, there's no longer a question of it being Just Mia's Horse Delusions. So the most original element immediately goes out the window only for it to be brought back to light when The Abomination calls her a 'pathetic junkie'. They could've done so much more with that idea.
* Taking the tape recorder out of the plot forces Eric into an unfortunate position; it makes him simultaneously wise enough to read the transcriptions within the book for a solution yet dumb enough to make a rubbing of the words and recite them out loud; his negative, Deadpan Snarker personality doesn't help. Scott was much the same in the original movie, with one crucial difference; none of the kids have any clue what the book says. They're doomed by accident after playing the recording. Having Eric know more and then anyone else, then trying to force us to root for him, was a bad move. They piled on another cardinal sin by editing out the fact that he was a professor wannabe in the original script. Without that detail, his obsession with the book makes no sense.
* If you came home to your beloved family cabin to stage a monitored detox for your junkie sister, and you find out that the place has been both broken into and apparently violated by devil-worshipping locals, would you stay and continue the detox? Or would you call the local sheriff and then go take care of business in another setting?
* And for that matter, how is it Mia's 'super sensitivity' and Grandpa's extra-sharp nose were the only ones able to pick out the scent of hundreds of cats rotting away under their feet?
* The whole 'the infected cannot leave the cabin' thing Olivia goes through plays better in text than on screen, and Natalie actually DOES leave the house successfully while possessed. So did Mia.
* Mia did next to nothing by way of actually taunting the group for the majority of the movie; she's much, much less of a force than Cheryl was, and never escapes the cellar to go on a rampage. People literally have to go into the cellar to be menaced by her!
* Mia solves literally nothing for herself. Even in the original movie, Ash grows enough courage to battle back against Cheryl and Scott and even the cabin itself. True, he survives only by accident. But Mia's got all of the character development of a football; she doesn't even get to consciously decide to put aside her addiction. At least Ash's own human sentimentality saved him from the Deadite's clutches - for Mia, it's David's literally forcing her to live that does the job.
* Switching protags from Eric and David to Mia at the last minute as a 'shocking twist' is lame and feels like a rip-off. We should have been following Mia throughout the entire movie (which, shock of shocks, is what we do with Ash in the original) to build proper rooting value for her.
* David is treated as an evil, evil person for his cowardice; in the original, Ash's a coward...but he's also not a jackass who abandoned his dying mom and junkie sister by turns. Then again, the movie's events hinge on an event we never witnessed, so who knows; maybe David and Mia's mom was an addict? Maybe he was trying to distance himself from his toxic family?
* The last half hour disintegrates into Evil Dead 2 style camp, after maintaining a serious facade for most of the movie's running time.
* Imagine you're the devil. Imagine that you've been waiting for centuries to rise to the surface of the earth and bring down a rain of fire and death. And when you do...you rise as your last victim's worst version of herself, because psychology? And artistic values? You get to have super strength, but golly - your gangly legs are ripe for chainsawing! It's so easily killed, and the fact that the Abomination sounds exactly like ET does not help it become scarier. Like, at all.
* How the hell did David look at the hammer and immediately come to the conclusion that Mia killed their dog? Why would Mia have had any interest in the toolshed in the first place? Anyone on that trip, even maybe oh, I don't know, THE PERSON WHO BROKE INTO YOUR HOUSE, STRUNG UP A BUNCH OF DEAD CATS, AND BURNED SOMETHING THAT SMELLS LIKE HAIR IN YOUR BASEMENT could have killed Grandpa.
* Mirrors in the evil dead verse, much like "the book", don't work that way. Fede really loves foreshadowing, doesn't he?
* The tone is all over the place. Is this camp or is it trying to be serious horror; am I supposed to care about David and Mia's plight or am I supposed to be chuckling at Eric? The original was straight horror - no chuckles except for teeny nervous ones. I've had people repeatedly misconstrue this movie as tongue-in-cheek to my face; I'm pretty sure Fede would disagree with that point.
* How did David look at a tree being struck by lightning and come to the conclusion that he could shock Mia back to life? Does he know what happens to the brain when you've been suffocated? And how does he know that the demon in Mia won't simply fake its exorcism?
* Oh, and to state what nearly everyone has stated about the plot, but to do it with even firmer evidence: the devil never got his five souls. With Eric, David and Girl In The Beginning all cleansed pre-death by fire, that leaves only Olivia, Natalie and Grandpa (if satan has any interest in dog's souls). And since Mia has all of her soul, that means he only got three.
Performances:
* Lou Taylor Puccci pretty much owns the movie, in that he's the only actor who's consistently good. He also pretty much walks Shiloh Fernandez through the entire picture.
* Jane Levy's been praised to high heavens for this movie, but she gives several weak line readings that ruin what should be several 'fuck yeah' moments. She's at her best when she's being menaced, and gives several good moments as a Deadite but went far, far into the Linda Blair realm with it - Alvarez should've told her to tone it down, because with all of that Deadite makeup caked on her face she looks way too much like Reagan. The sad part is you can tell they were going for a stylized version of the Deadite Cheryl makeup when you put the stills side-by-side.
* Shiloh Fernandez is uniformly terrible. Let's just be honest and admit that now. Between his inappropriate use of facial expressions, his bizarre and unbrotherly chemistry with Levy, his dead eyes and terrible fake crying and shitty line readings, I resented being stuck with him for ninety minutes.
* Elizabeth Blackmore's role was edited down to nothing, but her dead eyes and flat line readings are pretty awful. She has two great moments; when she spits out her own blood during her amputation scene and when she breaks down crying before dying. Otherwise she's given nothing to work with.
* Jessica Lucas (who got flipped billing with Blackmore for the DVD release - good on her agent) was decent as a Deadite but awful the rest of the movie.
Direction
* The best thing about the movie? How they shot the woods. It felt like we were stuck in an aquarium, and was at least interesting.
* The bad? Ugh. Alvarez can't frame or edit worth a damn. He's so obsessed with camera tricks that he loses utter track of his story. Whenever he wasn't trying to top Sam's shot list, he was employing jittercam. This movie wants me to care about David, Mia and Eric, Eric and David's friendship, Mia and David's relationship, Mia's sobriety, etc....and would rather give me spinny camera angles, jittercam, and full-on video game bs. If it had been lighter on the plot, I would not be complaining.
* I think the movie' most egregious mythology changes are definitely his choice to deliver Force POV shots...with absolutely no force chasing anybody down. Between that, the decision to use the book as a soothsaying device and the decision to depersonalize the cabin and the movie nearly felt as if it could have been set anywhere with a basement and a ficus bush.
* And holy shit, you do not do a build scene like that. Historically, they're supposed to be "took a level in badass" moments for Ash; recontextualizing them as David being very very sad and timorous because his sister might be dying is a bad, bad move.
SFX
* Eh, all right. Too many rubber appliances, to many obvious 'actor squeezes bladder filled with red liquid under severed arm prosthetic' moments. There is, at least, variety in the original movie. It TRIES to be nasty and shocking and brutal, but most of it scares are relentlessly manipulative (when in doubt, kill the dog and the kid!). (on another note, did this movie need three scenes featuring severed arms?)
* Am I the only one who noticed the obvious dummy effect when Eric was lit ablaze? And the fact that Natalie's lower arm was twice the size of her upper arm? After the endless bragging about magic tricks and post effects, they might've gotten better use out of CGI. And when you watch it on a smaller screen, you can tell what's been sweetened and what hasn't to an embarrassing degree.