Emma Stone Transforms Into Billie Jean King

The National ENQUIRER caught Emma Stone coming out of her trailer while starring in "Battle of the Sexes" — where the actress goes retro as Billie Jean King! Emma's sporting a very different look from earlier in the week, when she sported a daring dress among weirder outfits at the annual Met Gala!

It's a very different Emma who's starring as tennis pro Billie Jean in the big-screen recreation of her epic 1973 tennis match against self-proclaimed "chauvinist pig" Bobby Riggs!

Billie Jean, then 29, won her "Battle of the Sexes" tennis match against Riggs — with the 29-year-old tennis champ outscoring her 55-year-old opponent in three straight sets. It was a different time for tennis stars,with Billie Jean seen here showing off her white lace dress that she wore for Wimbledon the next year.

Emma is sporting an outfit that looks more like the 1970s as most people remember them. The Oscar nominee is co-starring with Steve Carell in the role of Riggs — as she moves on from her days playing doomed girlfriend Gwen Stacy in the recent "Spider-Man" franchise.

BIllie Jean would later make headlines when her lesbian love life was exposed in a "galimony" suit — with her former secretary Marilyn Barnett claiming they'd carried on a nine-year lesbian love match. Billie Jean is seen here with fellow tennis legend Martina Navratilova, who endured her own 1991 lawsuit when a lesbian lover sued her over earnings in 1991.

That scandal will have to be an epilogue to "Battle of the Sexes," though. Emma's playing Billie Jean back when she was still married to fellow tennis player Larry King. And while Billie Jean later said that the "galimony" suit made her "lose everything," she soon found new fame as an openly gay sports figure — and was awarded the Presidential Medal of Freedom by President Obama in 2009!