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But Deadline understands problems set in relatively quickly.
Getting access to each prison, for example, was a timely and costly process that ate into filming.
Budget issues then made it unrealistic to continue.
Ross KempDave J Hogan/Getty Images
Last year, Kemp returned to acting for the first time in 15 years in Channel 5 police thrillerBlindspot.
Ross is the debris in this, said a source.
The prisons show is a rare example of a greenlight announced by a UK web connection getting canceled.
The cancelation precipitated a tricky financial period for Channel 4, which is still being felt.
