Continuity mistake: The amount of blood on Allison blouse decreases after Vanya cuts her throat.
Continuity mistake: Elisabeth Shue is talking to Homelander by her car. As she gets her baby out of the car, she says "can we please just talk later" and has a muslin hanging over her right shoulder, turns around, and from the reverse angle the muslin is bundled up in front of her, not over her shoulder at all. Then the angle changes again and it's back where it was before.
Episode #1.1 - S1-E1
Continuity mistake: As Ricky Gervais walks by the school where his nephew is, a "chubby little ginger" shouts "pedo" at him. He stops and holds one of the bars of the railing, third from the pillar. In the close-up, you can count more bars than that, showing he is in a different position altogether. (00:07:00)
Continuity mistake: One moment Frankie takes out two shot glasses and a bottle and starts to pour. She pours maybe one-fourth of one glass. The very next shot, both glasses are filled. (00:03:35)
Continuity mistake: After Molly tries the experiment and takes off her safety googles, they reappear and disappear randomly when she hugs Ed.
When Cupid Is a Prying Journalist - S1-E2
Continuity mistake: When Joshua is waiting for his interview, watch behind Emma: The number of people next to the pool table increases/deceases randomly between shots.
Picture's Up - S1-E5
Continuity mistake: When the detective goes to retrieve the water bottle that Zach discards into the recycle bin, he picks it up with a napkin by the top. In the next shot, he is placing the bottle in a plastic bag top first, holding the bottle with the napkin by the bottom. (00:42:00)
Continuity mistake: The Empire State Building is shown in white lights at 14.56 and 17.11 into the episode. The same night at 17.13, it is red, white, and blue.