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Advertising bigwig Simon Aboud summons an impressive array of talent for his debut feature, pitched as an odd mix of indie-Brit parlour farce and Dog Day Afternoon .

Craig Roberts ( Submarine ) is the hapless bell boy caught up in a heist-gone-wrong that leaves him trapped in a stifling mayfair jewellery boutique with Imogen Poots, Timothy Spall and Kevin McKidd.