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Bosses are unsure that the $16 million remake of the British cult cop series will have international appeal, reports Variety.
Ray Winstone is lined up to play lead character Jack Regan, while 300 star Thomas Fassbender was linked to the role of his sidekick George Carter.
The original '70s TV show starred John Thaw and Dennis Waterman.
It is believed that producers are delaying production so they can attract big name stars, which would help sell the film outside the UK.
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