The first eight minutes of Kraven the Hunter feature a Spider-Man comic book Easter egg
In the clip, Kraven (Aaron Taylor-Johnson) infiltrates a prison to take out a mob boss, and his prison number is 0864. That's not just any random number, though, it's a fun nod to comic book history. The Amazing Spider-Man #15, which features the character's first comic book appearance as one of Spidey's adversaries, was published in August 1964.