Nothing About Venom Contradicts the MCU
One of the most striking aspects of Venom is how carefully Sony appear to have designed the film so it won't contradict the MCU. The movie is set in San Francisco, a location that's only previously appeared in the two Ant-Man films; there have been no alien invasions, no Avengers missions. The most San Francisco citizens have had to deal with are occasional sightings of Giant-Man, something that can easily be sidestepped. Had Venom been based in New York City, the risks of contradicting MCU continuity would have been far greater.
Likewise, the plot, inspired by the classic Venom: Lethal Protector comics, involves the sinister Life Foundation using alien symbiotes in secret, is engineered to have an enclosed impact. Plainly, this plot would work just as easily inside the MCU as it does outside of it; the only possible issue is avoiding any alien skepticism, given extraterrestrials have been common knowledge since the Chitauri invasion in The Avengers.
Even Sony's controversial decision to cut Spider-Man from Venom's origin story can be seen as a smart way to prevent any possible continuity issues; while it removes Eddie Brock from Peter Parker, it doesn't inherently preclude them from both existing.
There is No Overlap Between Sony & MCU Characters
Looking beyond Venom, Sony is also avoiding any character contradiction in future movies. To whit, there is no overlap between characters Sony is introducing and those introduced into the MCU; they aren't considering a Vulture movie, seemingly because Michael Keaton's Adrian Toomes exists in the MCU. In June 2017, there were reports that the studio was working on a Mysterio spinoff, something that has conspicuously disappeared since Mysterio has been confirmed as the villain of Spider-Man: Far From Home.
Instead, the movies that Sony is currently exploring - Black Cat, Silver Sable, Morbius, Kraven Silk - are all ones with nary a mention in relation to the MCU. It definitely looks as though Marvel and Sony are actively avoiding doubling-up on characters. And, while there's an argument to be made that there's a conscious attempt to avoid conflicting versions of characters, it also creates the potential for these films to be in the same universe.
Some plot rumors for future movies even point towards this. It was suggested that the (now-canceled) Silver & Black was going to feature a Norman Osborn cameo, but only using an actor for the voice to enable Marvel to cast someone else for the part down the line. If true, this implies Sony wanted Osborn to become a possible link between the Sony villain universe and the main MCU.
- Venom (2018) release date: Oct 05, 2018