Gareth Unwin, one of the producers on buzz Telluride and Toronto title “The King’s Speech,” is currently in development on another period pic “The Lady Who Went Too Far.”

Pic will reunite Unwin with “King’s Speech” scribe David Seidler, who is set to adapt the script based on journo Kirsten Ellis’ bio “Star of the Morning.”

Story, set during the Napoleonic Wars, charts the tale of Lady Hester Stanhope whose fate is enmeshed in a political thriller layered with intrigue, murder and love, as the fate of Europe, the Middle East and beyond hangs in the balance.

“She was a female Lawrence of Arabia, a hundred years before Lawrence,” said Seidler, who also penned 1999’s “The King and I.” “She came to exactly the same conclusion that Lawrence did, that we had no place in the Middle East and should keep away politicially.”

The $18 million pic will be produced through Unwin’s U.K.-based shingle Bedlam Productions while investors Richard Price and Molinaire’s Mark Foligno and Steve Milne will back the project.

Pic is skedded to lense in Blighty and Malta in 2011.

“The King’s Speech,” which unspooled at TIFF last night, continues to gather rave reviews from industryites and many bizzers on the ground are buzzing about the performances from thesps Colin Firth and Geoffrey Rush.

Pic opens domestically in late November through the Weinstein Company while Momentum will release the pic in Blighty on January 7.