Continuity mistake: In the car chase scene when Brock is on the motorcycle going through the city, you can see him pass by the same movie theater at least 3 different times in the chase showing they used the same street over and over while filming.
Continuity mistake: When Dan explains to Eddie what Venom is doing to his body, Venom grabs Dan with his left hand. In the next shot, it's his right hand.
Suggested correction: Venom always has Dan in his left hand. You can especially tell by the position of Venom's thumb.
Visible crew/equipment: When Eddie/Venom is sandwiched between two SUV's, the Symbiote takes over and makes them crash. You can see the hood of whatever vehicle the camera is in as it films the crash.
Suggested correction: After the crash of them going into the vehicles either side, you can see there is a third car in the exact spot as the camera car, so they could say it's the view from that car.
Continuity mistake: After Eddie faints in his bathroom the toothpaste around his mouth disappears.
Deliberate mistake: After Venom eats the head of one of the Drake's henchmen there is no blood from the wound.
Continuity mistake: Before Eddie gets into Mrs. Chen's store he grabs a newspaper that disappears when he's inside.
Suggested correction: He has the newspaper in his hand the whole time he's in the store. It's in his hand when he points at Mrs. Chen, you see it when he's hiding behind the shelves, and even at the end when he puts the items on the counter.
Revealing mistake: When the ambulance featuring the first Venom incarnation crashes it comes to a very sudden stop, like a piece of metal tipped over onto a magnet instead of sliding under its own momentum. Likely because they didn't animate the transition between the CGI of the crash and the stationary position of the set properly.
Continuity mistake: The photo taken by Eddie of the homeless girl in Life's lab was taken horizontally, but later when looking at the photo it's vertical.
Continuity mistake: When Dan calls Annie he is holding the cell phone with his right hand and the tablet with his left, but in the next shot they swap hands.
Continuity mistake: While Eddie and his girl are talking on the sidewalk after she was fired, a lady in a brown coat passes behind them at least three different times.
Continuity mistake: While Eddie is talking with Anne and her new boyfriend, she has a purse which disappears and reappears between shots.
Other mistake: When Maria dies after infecting Eddie with the symbiote her head's turned to her right. A shot of Eddie then her again, suddenly her head's turned towards Eddie who's on her left on the floor.
Continuity mistake: After Venom is separated from Eddie he escapes by the air vent, and in the wide view a monitor disappears between shots.
Continuity mistake: The girl that got the riot symbiote from Jameson has plastic gloves before she leaves the ambulance but when she is outside they are gone.
Continuity mistake: When Eddie is looking for a job, he marks on the newspaper with a pen on the right side but in the next shot it's on the left.
Continuity mistake: The body of the homeless guy changes after the symbiote leaves his body.