WWW- THERE’S a bunch of information about Bobby Darin you won’t learn in the new Kevin Spacey movie, “Beyond the Sea.”

According to the new biography, “Roman Candle” (Rodale) by former Paris Review editor David Evanier, Darin insisted on wearing a condom on stage every night he performed. A close friend of Darin’s lets on that “Sometimes he actually . . . he had an orgasm.”

As for his marriage to Sandra Dee, Darin told Evanier: “After we got married, I never went to bed with Sandra for the first three weeks. She wouldn’t let me near her.”