Michael Douglas transforms into Benjamin Franklin with wild curls while

Michael Douglas transforms into Benjamin Franklin with wild curls while filming biopic series

Michael Douglas transformed into Benjamin Franklin while filming scenes for a new biopic series in Paris on Wednesday.

For weeks, fans of the 78-year-old Hollywood icon had speculated as to why he was letting his slicked-back gray locks grow, but all was revealed when he transformed into the founding father for his role in Franklin.

After starring in 1995’s The American President, Michael is no stranger to political films, but his new role required a complete physical transformation.

Creepy!  Michael Douglas was the spitting image of Benjamin Franklin as he filmed scenes for new biopic series Franklin in Paris on Wednesday

Creepy! Michael Douglas was the spitting image of Benjamin Franklin as he filmed scenes for new biopic series Franklin in Paris on Wednesday

He looked almost unrecognizable as he donned long locks and a period costume to film scenes for the series – which tells the story of the 18th-century political philosopher – on the banks of the Seine.

The Oscar winner, who is married to Catherine Zeta Jones, was joined on set by The Undoing star Noah Jupe, 17, who plays his grandson and diplomat William Temple Franklin.

The Fatal Attraction star wore a costume consisting of a hand-spun coat, vest and pants for the scene.

He wrapped himself in historically accurate scarves and gloves.

Eerie: The Hollywood icon, 78, looked almost unrecognizable as he sported long locks and a period costume to film scenes for the series Spit picture: Benjamin Franklin can be seen in a portrait

Eerie: The Hollywood icon, 78, looked almost unrecognizable as he sported long locks and a period costume to film scenes for the series (Benjamin Franklin portrait right)

Bundle up!  The Oscar winner, who is married to Catherine Zeta Jones, was joined on set by The Undoing star Noah Jupe, 17, who plays his grandson and diplomat William Temple Franklin

Bundle up! The Oscar winner, who is married to Catherine Zeta Jones, was joined on set by The Undoing star Noah Jupe, 17, who plays his grandson and diplomat William Temple Franklin

Michael’s wild curls fit Franklin’s story, he famously went without a wig in America but wore a hairpiece when he visited Europe.

Noah wore a similarly styled but tighter fitting suit.

The Apple TV+ show tells the story of “one of the biggest gambles of Benjamin Franklin’s career.”

Pretty different: Michael is known for his mostly styled silver locks Look: Michael is pictured in 2014

Quite different: Michael is known for his usually coiffed silver locks (pic R)

Cut!  The decorated actor filmed a scene with Noah Jupe, 17, on the banks of the Seine in Paris, France

Cut! The decorated actor filmed a scene with Noah Jupe, 17, on the banks of the Seine in Paris, France

Michael, a native of New Jersey, is also signed on as an executive producer for the show.

A press release from the streaming service explained that the show is about when the creator “convinced France — an absolute monarchy — to support America’s experiment in democracy.”

The series will only be eight episodes long and is based on the non-fiction novel by Pulitzer Prize winner Stacy Schiff – A Great Improvisation: Franklin, France, and the Birth of America.

In the White House!  After starring in 1995's The American President, Michael is no stranger to political films, but his new role required a complete physical transformation

In the White House! After starring in 1995’s The American President, Michael is no stranger to political films, but his new role required a complete physical transformation

Historically accurate, the Fatal Attraction star wore a costume consisting of a home-spun coat, vest and pants

Historically accurate, the Fatal Attraction star wore a costume consisting of a home-spun coat, vest and pants

Method Acting:

Method Acting: “Michael has become the role that changes his physicality, voice and cadence,” said producer Tony Krantz

Limited Series: The show will only have eight episodes and is based on the non-fiction novel by Stacy Schiff - A Great Improvisation: Franklin, France, and the Birth of America.

Limited Series: The show will only have eight episodes and is based on the non-fiction novel by Stacy Schiff – A Great Improvisation: Franklin, France, and the Birth of America.

Apple TV+ announced the limited series order last February. The streaming service has yet to announce an official Franklin release date.

The series is directed by Tim Van Patten, known for his work on episodes of The Sopranos, Sex and the City and Game of Thrones.

Douglas is known for his work in portraying historical and iconic figures.

In the past, screen icon Benjamin Franklin voiced in the 2003 PBS miniseries Freedom: A History of US.

Related: The Quiet Place alum portrays Benjamin Franklin's grandson, Temple

Related: The Quiet Place alum portrays Benjamin Franklin’s grandson, Temple

Making his story: The Apple TV+ show tells the story of 'one of the biggest gambles of Benjamin Franklin's career'

Making his story: The Apple TV+ show tells the story of ‘one of the biggest gambles of Benjamin Franklin’s career’

He was also praised for his portrayal of Liberace in the 2013 romantic drama series Behind the Candelabra.

Producer Tony Krantz spoke to Entertainment Weekly in June about Douglas’ performance in the biopic.

‘When [the other producers on the film] Richard Plepler, Tim Van Patten and I started talking about possible actors for Franklin, there was really only one: Michael Douglas,” he said.

“We were lucky. It was like winning the lottery – he said yes.”

He added: “Now Michael has become the role that changes his physicality, voice and cadence. And his humor is so much fun.

“I think people are going to see one of Michael Douglas’ greatest performances of all time in this project.”

An adaptation of the story: the show revolves around when the inventor

An adaptation of the story: the show revolves around when the inventor “convinced France—an absolute monarchy—to support America’s experiment in democracy.”