Row, row, row your boat: Keira Knightley strums her guitar while on a lake filming Can A Song Save Your Life?

Keira Knightley proved that she can make sweet music both on land and on water, today.
The British star hopped in a boat and serenaded her co-star Mark Ruffalo while the pair filmed scenes at the Boathouse Lake in Central Park, Manhattan.
The 27-year-old beauty was on her last day of filming Can A Song Save Your Life? and spent quite a while being rowed around.

Water world: Keira Knightley looked in good spirits as she filmed a boat scene for Can A Song Save Your Life? in New York

Keira looked lovely in a sleeveless blue blouse and cream trousers as she spent the afternoon strumming her guitar.
However, the slim star was lucky her boat didn't capsize as the man paddling the small vessel was a rather large individual.
Knightley was in good spirits as she joked around and pulled funny faces throughout her time filming and her burly friend continued to steer the boat.

Making waves: The British star was being watched over by a burly male who also rowed the boat

Heave ho: The beauty looked like a natural guitarist as she practiced some chords while in Manhattan, New York

The sounds of summer: While Keira was in one boat, James Corden and Mark Ruffalo were watching from another one

Ruffalo, 44, joined them but from a separate boat which he shared with Gavin and Stacey star James Corden.
While Corden, 33, was holding a camera in his hand, Ruffalo was charged with maintaining their steady speed alongside Knightley.
With their water scene over, Mark acted the perfect gentleman and stood on dry land with his arm outstretched waiting for her to get off the boat.

Dream on: Keira looked in a world of her own as James and Mark adjusted themselves so they could capture her performing

A helping hand: Mark Ruffalo stood on the dry land to offer Knightley help off the boat

Keira's fiance James Righton was in the area and was waiting for her in the nearby car park.
After giving her a quick goodbye kiss the musician headed back to his car as Keira ran back to set to continue filming.
London-born Knightley started dating the musician last year after being introduced by mutual friend Alexa Chung.

Take five: Keira was spotted sitting on a bench reading a newspaper and checking her phone between scenes

Laugh out loud: The British star cracked up as Mark Ruffalo made some hilarious comment to her off camera

The couple are yet to pose together at a public function, but they have been seen together numerous times in recent weeks out and about in New York and London looking completely smitten with each other.
Can A Song Save Your Life? sees Knightley's character arrive in New York with her long-term love interest Adam Levine with the aim of pursuing a musical career together.
But Levine's character dumps her for what he thinks will be a successful solo career without her.

Sweet thing: Keira's fiance James Righton was nearby waiting for her in the car park but only stayed briefly

In a rather typical movie twist, Levine's character meets with a bad ending while Knightley's Greta is happily discovered by a producer, played by Ruffalo, while singing in a bar on an open mic night.
The movie has just announced another high-profile attachment, with hit musician Cee Lo Green to join the cast playing a successful hip-hop star.

The look of love: Keira was filled with joy as she contently smiled after seeing her man