Metro

Dunst cap for juror in mistrial

Even Spider-Man couldn’t save this jury.

A lone holdout fell for the “I’m too stupid” defense of Kirsten Dunst’s accused purse swiper yesterday, causing a mistrial on two key burglary charges.

After three days of deliberations, the Manhattan Supreme Court jury could only agree on a misdemeanor trespassing conviction for the special-ed dropout from Coney Island charged with taking Dunst’s bag from her unlocked penthouse suite at the Soho Grand two years ago.

“The majority was in favor of guilt,” one female juror said of the 11-1 rift, which jurors described as amicable but ultimately insurmountable.

Dunst — who played Spider-Man’s sweetheart Mary Jane Watson in all three movies — turned the mundane burglary case into a courtroom comedy when she took the stand Sept. 24.

She flipped her hair and chirpily described how her bag vanished while she was at the swank hotel filming lobby and sidewalk scenes for “How to Lose Friends and Alienate People.”

The accused thief, James Jimenez, 35, was caught on hotel security video that night meandering through restricted areas, including Dunst’s penthouse floor, for an hour.

His DNA matched DNA from a paper coffee cup he was caught on tape sipping from after swiping it from a hotel hospitality table.

But Jimenez had claimed on the witness stand earlier this week that he had no idea he had committed a burglary when he went to the hotel at four in the morning, wandered about for an hour, and then walked out carrying Dunst’s $2,000 Balenciaga purse in a Nobu takeout shopping bag.

His buddy, co-defendant Jarrod Beinerman, who pled to the burglary last year, convinced him they were just there to run an innocent, unnamed errand, Jimenez insisted to jurors.

Beinerman is serving a 4½-year prison term.

Jimenez also claimed that he only carried the shopping bag out of the hotel because Beinerman handed it to him and that he never looked inside.

Jimenez submitted letters and grades from his old special-ed program to bolster his “I’m too stupid” claim.

“James did not have the intention to commit a crime that morning,” defense lawyer Daniel Hupert told the jury.

Jimenez will likely be retried on the burglary charges.

laura.italiano@nypost.com