Jamie Foxx, who stars in “The Amazing Spider-Man 2,” knows something about the double-life of a superhero. Though he’s 46, Jamie Foxx was only born 25 years ago. Named Eric Bishop at birth, he adopted the stage name at a Texas open mic, choosing a gender neutral moniker since women were chosen quicker at the comedy club. So it’s fitting that when the makers of “The Amazing Spider-Man 2” needed someone to play energy embodied, they turned to the perpetually “on” Foxx. In the film, which opens Friday, he plays Max Dillon, the shy Oscorp electrical engineer who’s transformed into the villain Electro after falling into a pool of electric eels.
