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 dads' work. Eddie takes him to his their dads' old lab at Oscorp and find something called "The Suit" which was meant to cure cancer and holds hope for the future. Later on, Peter sneaks in to the lab and gets bitten by a radio active spider that turns him in to Spider-Man. Eddie finds out that Peter "stole" the spider for his own use and then takes the suit which turns Eddie in to Venom.