Caught up in Sox ‘Fever’

Your eyes weren’t playing tricks on you.

That really was Jimmy Fallon and Drew Barrymore making out on the field as the Boston Red Sox celebrated their first World Series victory since 1918.

In a case of art imitating life, the stars of the upcoming Farrelly brothers’ movie “Fever Pitch” were shooting a new happy ending, which has been cobbled together furiously in the wake of the Sox’s historic run to the world championship.

So as Curt Schilling, Kevin Millar, Jason Varitek and the rest of the players swarmed the infield at St. Louis’ Busch Stadium Wednesday night after the Sox’s four-game sweep of the Cardinals, Fallon and Barrymore were in the middle of the madness, with the Farrellys’ camera following them.

Brothers Peter and Bobby, who are directing the movie about a Red Sox fan who’s torn between the woman he loves and the baseball team he worships, realized they needed a different ending once the Sox came back from a 3-0 deficit to beat the New York Yankees in the American League championship series last week.

“Until then, we didn’t allow ourselves to dream that it could happen,” Bobby Farrelly said Friday by phone from Toronto, where the rest of “Fever Pitch” is being shot. “You know how superstitious everyone is in Boston. We felt like if we started writing before that, we’d jinx them.”

The Farrellys, lifelong Red Sox fans from Cumberland, R.I., who spent two weeks shooting at Fenway Park last month, asked screenwriters Lowell Ganz and Babaloo Mandel to tweak the script to make it about a winning team.