Continuity mistake: When Gilgamesh hammers the Deviant into the gates of Babylon, dealing the last strike after the dramatic pose, the shadows cast by the statues don't go much further away than their pedestal. In the following long shot the 5 Eternals have a massive area of shade behind them that extends very far away from the city walls. (00:21:30)
Continuity mistake: When Sersi gives Dane Whitman the ring in the club, her hand goes on/off his shoulder repeatedly. (00:12:00)
Continuity mistake: Sersi falls into the pool with the deviant and the pool is extremely deep, but when she turns the deviant into a tree and gets out, the pool seems shallow enough to stand in. (01:18:39)
Continuity mistake: When Ikaris flubs his line in the ancient language and Sersi and he share a moment, the hair moves on/off Gemma Chan's shoulder abruptly between shots. (00:29:00)
Continuity mistake: When Dane and Sersi hug towards the end of the movie, depending on the camera angle she has her right arm above his shoulder or not. (02:20:50)
Continuity mistake: On the beach for the ending, Phastus asks Sersi "How, how did you do it?" Her hair is mostly clean off the shoulder, but in the next shot she has a mess of hair all over that shoulder which goes away again when it cuts back to the previous camera angle. (02:14:00)
Continuity mistake: When the Deviant has Thena in his grasp, he caresses her. As he says "Remember", her hair is in front of the left shoulder, and it was all the way back behind the shoulder in the previous shot. (02:05:50)
Continuity mistake: During the awesome fight between Makkari and Ikaris, he manages to get a chokehold on her; Lauren Ridloff's hands keep changing position on Richard Madden's arm. (01:59:25)
Continuity mistake: Sersi needs to go all the way up the mountain for the Emergence. Phastus tells "We got you. Go", having a hand on her shoulder, gone mid-sentence and the position of Sersi's hair changed entirely as well. (01:59:15)
Continuity mistake: When Phastus starts talking to Sersi about the sphere inside of her, his hand position is inconsistent between shots several times until he mentions the Uni-Mind. (01:53:05)
Continuity mistake: On the Hiroshima site, Ajak approaches Phastus. She puts her hand on his back, but it's on the shoulder in the next shot, and only later she slips it to his back. They change position also when she caresses his cheek and in the faraway shot that concludes the intermission. (01:24:55)
Continuity mistake: During their lunch together, Sprite turns Gilgamesh's clothes into a baby onesie. Look at Sersi's arm; she changes position between cuts more than once. (00:53:55)
Continuity mistake: Lunch at Gil and Thena's. Gilgamesh offers the mead to Kingo, and puts both hands on Patel's shoulders. Change of angle and Gil has just his left hand on him. (00:53:20)
Continuity mistake: Sprite projects one of her illusions to bring back to Thena the memories of her identity. When she says the line "The goddess of war", look at the reaction shot on Thena; for a moment her extended fingertips pops in frame, but only a few seconds later in a different shot we see her dematerializing the blade she was clutching. (00:52:30)
Continuity mistake: Sersi and the others approach Thena that is painting something by some sort of tree; in the span of a few seconds the shadows cast by the tree and by Angelina Jolie's body have changed significantly (like from 3 o'clock to 6). (00:51:40)
Continuity mistake: Sersi shows Ikaris the wonders of her smartphone filter; she presents the phone holding it just with her right hand, but in close-up she is holding it differently using also her left hand for support. (00:48:10)
Continuity mistake: Kingo is a Bollywood star. When we first see him involved in the dance routine, he fixes his hair and leaves the center stage to a female dancer. Meanwhile, in the background there are male dancers entering the scene. Look at the one that occupies the first archway to the right of the center; he's in a different position (close to the guards or close to the other pillar) in separate shots. (00:44:00)
Continuity mistake: To convince Thena that she needs to be cured erasing her memories, Ajak puts a hand on her chest. The hand rests on a different spot each time the camera cuts away from it. (00:39:35)
Continuity mistake: When Thena wakes up from her first attack of Mahd Wy'ry, there's a close-up of Angelina Jolie opening her eyes, and her mouth. Cut to a side view, and her eyes are open, but her mouth is shut. (00:38:40)
Continuity mistake: Ajak is trying to calm Thena down and initially she has some success, but the crack of a musket shot brings her back into the Mahd Wy'ry, and she attacks. Notice that Ajak blocks Athena's right arm with the back of her own right arm, but in the next shot the back of Salma Hayek's arm is against the inside of Angelina Jolie's left arm, so she gets free instantly and stabs her. (00:37:35)
