Continuity mistake: When Venom delivers the mail to Eddie while making breakfast, the letters are angled differently in the various shots, in Venom's cute little pseudo-hand first, between Tom Hardy's big paws after. (00:23:40)
Continuity mistake: At the beginning of the "Let's Call The Whole Thing Off" scene, Eddie already poured the orange juice and put it down before Venom messes with the radio and fridge. We see then symbiote's tentacle pass in front of Eddie's hand, which is suspended in mid-air still pouring. Then we cut back to the original angle and Hardy is about to drink from the glass, the orange juice carton well set on the table. (00:23:05)
Continuity mistake: Venom 'saves' a woman that is being mugged; when they hold the evildoer upside down plotting to eat him, the woman witnesses the scene wide-eyed. Her necklace is in a different position between the background feature and the close-up on her. (00:16:40)
Continuity mistake: In the first "Present day" scene, the Ravencroft wardens enter Shriek's cell to feed her. She is lying on one side in the establishing dolly, and she's just lying on her back in the next shot. (00:04:10)
Continuity mistake: When Young Shriek blows Young Detective Mulligan's eardrum (just one for some reason), he grabs his own ear clutching his fingers around it. In the next shot his hand is turned around in a different way. (00:02:45)
Continuity mistake: When Anne purrs "I love seeing you in action", Mrs Chen lowers her arm, but is still pointing at Dan in the next shot. (01:00:45)
Continuity mistake: In the beach scene ending, Venom's shadow keep changing between shots appearing inconsistent with the sunset. (01:24:00)
Continuity mistake: When the priest begs for his life as Carnage threatens his biological symbiotic dad with "Death to you, father", the hand with the bible is higher in the side shots and lower in the intermediate closer camera angle. (01:08:25)
Continuity mistake: During the 'apology' scene in the alley, Anne's hair all of a sudden moves from the left part of her chest going all the way above the shoulder. (01:02:45)
Continuity mistake: When Mrs. Chen tells Anne that she broke Eddie's heart, Michelle Williams' hair goes from the front to the back of her shoulders. (00:59:15)
Continuity mistake: Casady goes "Ta-dah!" on Dr. Pazzo suddenly appearing inside Frances' containment zone. He lowers his arms, which are still raised in the reverse shot. (00:51:25)
Continuity mistake: Carnage pins against the wall a prison warden who begs him to spare him. He looks straight ahead and the POV shot displays Carnage's face directly in front of him, but in the side view Carnage's splotchy eyes are in front of the chest of the guy and the tongue has to go up a lot to plunge inside the victim 's oesophagus. (00:38:15)
Continuity mistake: When Eddie shouts "No!" as the free symbiote vandalizes his bike, he sticks his head out from an apartment completely in the dark, but we saw him run towards the window near the only part of the flat where there are lights still functional and switched on. (00:34:30)
Continuity mistake: When Venom starts tossing Kasady around in his cell, Eddie right hand is positioned in the rightmost space of the door. Kasady bites him when his arm is through the space to the left of that, though. His arm is also pointed at a different angle and height between shots. (00:29:35)
Continuity mistake: Eddie meets Anne at L'Araignee ("The Spider") and hugs her. His hand is at the top of her shoulder, middle of the back, top of the shoulder again. (00:18:45)
Continuity mistake: Venom is drawing hyper-fast parts of the material they ogled on the wall of Kasady's cell. On Eddy's messy desk there's a sheet with data from California State University, very recognizable for the colors and shape of the graph. When they draw the tree, notice that the sheet turns 90° multiple times between shots without Venom touching it. (00:10:50)
Continuity mistake: When Carnage steals the Mustang he is driving through the financial district in San Francisco. It then cuts to him driving into the city on the Bay Bridge. How and why did he go from being in the city to leaving and driving back in?
Continuity mistake: Eddie snoops around the park of Cletus' old delinquent kids' home. He brandishes the torch with his left hand, but when he walks in a frame later he's holding it in his right hand. (00:00:48)
Answer: The host and symbiote merge fully. So the symbiote can totally disappear into the host and the host can totally disappear into the symbiote. They can also split again, or partially, at will. It just depends on who gets to be the active version at that time.
lionhead
I am not up to speed with recent Marvel canon, but in the comics it's never been that way? The symbiote can surely slink inside the host (especially Carnage in Kasady's blood), but the humans can't turn into shapeless goo. Comics aside, that sequence from the movie is mind-boggling; I can sorta explain it thinking the symbiote just tore Kasady's torso in half and then reattached it instantly (in other parts of the movie Eddie gets basically stabbed with what would be lethal wounds).
Sammo ★
Actually, in the comics it's long been established that Carnage's healing factor is Deadpool-levels of broken. There are numerous moments where Carnage is impaled, crushed, decapitated, has his neck twisted, even grenades blowing up in his jaws and straight up nailed by military missiles... AND HE'S JUST FINE AND WALKS IT OFF LIKE NOTHING HAPPENED. He absolutely could casually tear himself open with no drawback whatsoever.
"Could" tear himself open, does he usually?"Can turn into shapeless goo", has he? One thing is to regenerate the torso, another thing is to manipulate your body parting before the bullets reach you.I don't really see that from the example posted, but my curiosity aside, given we're talking about the movie anyway, I really don't see Kasady depicted as a shapeshifter, and him and the symbiote in this movie are entirely separated at the end (pending a sequel of course).
Sammo ★
Also, for Carnage specifically, the human absolutely can turn into shapeless goo. Makes sense, actually, given that the symbiote canonically merged into Kasady's own cells and microscopic DNA, something even Venom and its hosts can't replicate https://2.bp.blogspot.com/9DjIg5e1HwLrwx-lhLjXxlUqzici7xajVTQZMhEHW8a0X9BqdRFE4U6eaBuPKXJgb8zSxkTytpvh=s1600 so the "symbiote-opening-up-the-host-body-with-holes" being a Carnage specific thing isn't surprising at all, in fact, given it's the same body.