The Avenging Spider-Man (2015)

When Peter Parker meets his old friend Eddie Brock for the first time in 5 years, Eddie tells him that he's moved back to inherit his and Peter's dead dad's work. Eddie takes him to their dad's old lab at Oscorp and finds something called "The Suit" which was meant to cure cancer and holds hope for the future. Later on, Peter sneaks into the lab and gets bitten by a radioactive spider that turns him into Spider-Man. Eddie finds out that Peter "stole" the spider for his own use and then takes the suit, turning Eddie into Venom.