At the end of the movie Venom 2 - "Let There Be Carnage", Venom and Eddie watch on TV together when J. Jonah Jameson reveals Spider-Man's identity as Peter Parker. This detail is directly related to the events in "Spider-Man: No Way Home" 2021.
@Spider-Man: No Way Home 2021. Theaters, Starz, Netflix, Disney+.
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The occurrences in Spider-Man 3 show that Dr Strange's "out of rhythm" spell not only summons the 5 big names including Dr. Otto Octavius, Green Goblin, Electro, The Lizard and Sandman but also many other characters from their respective universes, including Eddie and Venom.
It's beyond the couple's exceptions to enjoy their honeymoon in another universe.
Although not playing any role in the main events of Spider-Man 3, Venom does appear in the mid-credits.
In this scene, Eddie Brock and Venom sit in a bar and discuss with the bartender about other superheroes and recent events happening in this universe. While pondering how to "protect" this new world (yes, protect it), the duo are quickly transported back to their universe by Strange's magic, but inadvertently leave a symbiote on the counter.
Marvel movie set-ups always contain a hint of something for future events. From this detail, it can be inferred that the symbiote left by Venom may later find a host to develop into a version of Venom to officially join the Marvel Cinematic Universe.
And so, just in a short moment, Venom has "seeded" on another universe. Well, the Eddie-Venom's honeymoon prove to be quite fruitful!
