Tom Hardy's son Louis Thomas Hardy is a fan of Venom, and Hardy took the role to please him: "I wanted to do something my son could watch. So I did something where I bite people's heads off." Louis also guided his father on how to appropriately portray Brock/Venom, since Hardy didn't know the character very well.
Tom Hardy describes Venom as a tragic clown: "There's something funny about the circumstances of having a tragic gift. It's a superpower you don't really want, but at the same time, you love it. It makes you feel special. He's both a reluctant hero and an anti-hero."
This film is well-known to have an extremely difficult production history. The film was originally envisioned as a direct spin-off from Spider-Man 3 (2007), though Topher Grace was stated not to return to the role. Shortly after the franchise was rebooted, the film was announced once again, though this time within continuity of the Webb series. Chris Zylka expressed interest in playing the characters Flash Thompson iteration, which was currently running in the comics at that time. Once The Amazing Spider-Man 2 (2014) was released, Sony announced that "Venom: Carnage" would be a part of their Spider-Man Cinematic Universe. Soon afterward, Sony and Marvel decided to collaborate with the Spider-Man franchise, opting to reboot again and placing a Venom spin-off on hold. Though Sony wishes to continue with their spin-offs of the Spider-Man franchise, no word has been announced on future projects as of February 2018.
Tom Hardy cites The Ren & Stimpy Show (1991) as an influence on the relationship between Eddie Brock and Venom: "I always saw Venom as a lounge lizard, and Eddie Brock as an everyday kind of guy who's inherited this massive ego beast."
Out of several actors that were requested and rumored by fans to play "Carnage" (Jim Carrey, Michael C. Hall, and Michael Fassbender), Cameron Monaghan is the only one to express great interest in playing the role. Monaghan is known for portraying the breakout role and fan favorite "Jerome" on the television series Gotham (2014).
In June 2017, Marvel Producer Kevin Feige confirmed that the movie would not be set in the Marvel Cinematic Universe. However, Amy Pascal contradicted this by saying it would. It was later announced that same month that Venom is its own universe.
This is Michelle Williams' first superhero film. When asked why she wanted to be apart of this movie, she said, "I always like to do things I haven't done before, genres, parts. I like a challenge, and one of those challenges has been stepping into a bigger world."
Venom (2018) is supposedly connected to the Marvel Cinematic Universe according to the film's co-producer Amy Pascal. Though Kevin Feige has stated that's not the case, it's still unknown whether or not this film's actually connected to MARVEL Studios' flagship franchise at all.
The film's official movie poster is designed in a similar fashion to one of Spider-Man 2 (2004)'s movie posters. In each poster, the design presents the main character's face partially covered by part of his costume.
Tom Hardy based his performance as Eddie Brock/Venom on three actors: Woody Allen ("the tortured neurosis and all the humor that can come from that"), martial artist fighter Conor McGregor ("the taste and capability for uber-violence"), and Redman ("out of control, living rent-free in his head.").
Originally, Tom Hardy was going to portray Venom in motion-capture visual effects, but that plan was scrapped because the features couldn't be imitated: "Your eyes and teeth and tongue are not going to match with his, and you need a seven-foot tall basketball player in a Lycra suit for the physical shots!" Venom is fully computer graphics imagery in the film.
Tom Hardy's first role for a Marvel-related production, his second superhero film since The Dark Knight Rises (2012) (from DC Comics/Entertainment, Marvel's longtime competitor) and his first Columbia/Sony Pictures associated production since Marie Antoinette (2006).
The trivia items below may give away important plot points.
The filmmakers cite the Venom comic storylines "Lethal Protector" (Venom becomes a vigilante guardian hero for San Francisco) and "Planet of the Symbiotes" (Earth is invaded by an army of symbiotes) as an influence on the film.
In the comics, the Venom symbiote was initially attached to Spider-Man (Peter Parker) during the Secret Wars event in 1984. When he realized his costume was alive and was controlling his body, he disposed of it. It would later come in contact with Eddie Brock, and the two would be bonded together to form Venom. This film omits the Spider-Man part of Venom's origin, due to Sony/Columbia selling the Spider-Man rights to Marvel Studios (he would appear in Captain America: Civil War (2016) and Spider-Man: Homecoming (2017)). Instead, the film uses the Life Foundation experimenting with symbiotes. Venom also has no design elements from Spider-Man, instead using a unique symbol.