Katie Holmes frolics around in a wet T-shirt while filming new movie (no wonder she's already been asked out on set seven times!)

'Manic' behavior: Katie Holmes' film shoot turned into an impromptu wet T-shirt contest when the divorced mother frollicked in a New York fountain Tuesday

 

Katie Holmes frolics in fountain

The acting duo, both 34, were filming a scene in Washington Square Park's central fountain, which was renovated in 2007 to include ornamental water plumes.

Katie's soaked lacy bra underneath did little to hide her perky assets as she shot the Spike Lee-produced romantic drama.

Holmes - who plays poet Carla - was dressed casually in a beige scoop-neck tee and knee-length blue jean cut-offs.

En garde! Katie's soaked lacy bra underneath did little to hide her perky assets as she shot the Spike Lee-produced romantic drama

Crazy love: The Dawson's Creek star could not stop grinning as she splashed alongside her Canadian co-star Luke Kirby on the set of Mania Days

Splish splash: The acting duo, both 34, were filming a scene in Washington Square Park's central fountain, which was renovated in 2007 to include ornamental water plumes

Carefree moment: The mother-of-one appeared to have a fantastic time beating the 83-degree heat by jumping around in the historic fountain

Luke - playing rapper Marco - matched her in an equally casual blue T-shirt and dark blue jeans.

According to Indiewire, the romantic drama is about 'a manic depressive rapper who gets involved with a manic depressive poet in a passionate affair that results in a pregnancy.'

The romance, which begins in a psychiatric hospital, brings out all of the beauty and horror of their shared condition.

Just like Stefon on SNL: Holmes - who plays poet Carla - was dressed casually in a beige scoop-neck tee and knee-length blue jean cut-offs

Weee! Katie, who's mother to seven-year-old daughter Suri, gave a random little girl a lift while playing in the water

Fun and frolics: Katie flung the youngster into the air with ease and whirled her around

Cuddle time: After their dip Katie scooped the girl, who was grinning from ear to ear, into her arms

Christine Lahti and Griffin Dunne also appear in the film, due out next year, helmed by first-time feature director Paul Dalio.

Dalio is said to be irritated that his leading lady has been asked out seven times on the set since filming began a few weeks ago.

Water fight: Katie grimaced as Luke splashed her in the face with a huge spray of water

High kicks: The trio ran through the water but were careful to avoid any falls as they filmed the scene

Joyful: Katie was giddy as she toweled off after playing in the fountain

Hard day's work: The romantic drama, due out next year, is about 'a manic depressive rapper who gets involved with a manic depressive poet in a passionate affair that results in a pregnancy'

Playing with a squirrel: Katie later got deeper into her wild Mania Days character while chasing a squirrel in the park

Peek-a-boo: The squirrel and the actress actually got quite close as she peered around the trunk of a tree

Just a little closer: Katie beckoned the critter to come towards her

Sparks flying! Earlier in the morning, Katie and the Take This Waltz stud exchanged many coy glances and bursts of laughter while shooting on a bench

Chemistry: The romance, which begins in a psychiatric hospital, brings out all of the beauty and horror of their shared condition

Cracking up: The Batman Begins star appeared to be make-up free with her brunette locks thrown up in a messy updo

The Batman Begins star appeared to be make-up free with her brunette locks thrown up in a messy updo.

Katie was wearing the same tee but she had on different knee-length blue shorts and matching beige boots.

Holmes was also clutching a red journal befitting her poet character.

Hand-holding: Holmes was also clutching a red journal befitting her poet character

Drab: Katie was wearing the same tee but she had on different knee-length blue shorts and matching beige boots

Manic Days: Christine Lahti and Griffin Dunne also appear in the film, due out next year, helmed by first-time feature director Paul Dalio

'Needless to say, she said no to everyone': Dalio is said to be irritated that his leading lady has been asked out seven times on the set since filming began a few weeks ago

Not seen Tuesday was Katie's seven-year-old daughter Suri, who's rumoured to be creating her own fashion line.

Mania Days is Katie's second film since her split from ex-husband Tom Cruise.

The 50-year-old movie star has been busy promoting his film Oblivion in Asia and was last seen greeting fans at the Mutianyu Great Wall in Beijing.

Fashionista: The actress-turned-fashion designer's last public appearance was at the Met Ball where she flashed side-boob in a white Francisco Costa gown

The actress-turned-fashion designer's last public appearance was at the Met Ball where she flashed side-boob in a white Francisco Costa gown.

Katie will next appear alongside Jean Reno, Allison Janney, and William Hurt in a yet-to-be-titled Christian Camargo drama, which is a modern retelling of Anton Chekhov's The Seagull.

She'll also star opposite Gossip Girl hunk Chace Crawford in the romantic comedy Responsible Adults, about a man who realizes that his crush was his babysitter 15 years ago.