Not that it’s as good as that sublime comedy (among the best of the ’80s), but Salmon Fishing... is a low-keyed charmer that will leave most of us with bemused smiles plastered across our mugs.
Ewan McGregor  is Alfred Jones, a scientist with the British Ministry of Fisheries. He’s a science wonk who takes his job of riding herd on Her Majesty’s wild salmon population quite seriously indeed. So he’s none too thrilled when someone in the Prime Minister’s office — hoping for some news from the Arab world that doesn’t involve an explosion — directs him to take a meeting with a publicist named Harriet (Emily Blunt ) who’s in the employ of a fantastically wealthy oil sheik.
This Muhammed (Amr Waked ) is an avid fly fisherman who dreams of establishing a salmon fishery in his native land. All that’s required is to build a massive dam, create a huge lake, and somehow fool North Atlantic salmon into reproducing amid the desert sands.
Alfred is dweeby, obtuse, and a poorly-paid civil servant. Harriet, by comparison, is hip, well-heeled, and cutting edge.
Naturally they fall in love, notwithstanding Alfred’s long relationship with a woman who seems to have little use for him (after a round of perfunctory sex she declares, “That should do you for a while”) and Harriet’s recent fling with a fella who’s a Brit version of a Navy Seal and is being sent off to some godforsaken hot spot.
McGregor and Blunt are just as charming as you’d expect, and the screenplay by Simon Beaufoy  (The Full Monty , Slumdog Millionaire , 127 Hours ) gives them plenty of clever banter to lure us in.
But the real star of the show is Waked as Shiek Muhhamed. This Egyptian actor (he played one of Sadam Hussein’s sons in HBO’s The House of Saddam ) has an astonishing face and piercing eyes, and in his love of fishing this potentate is absolutely Zen-like. He’s like Alec Guinness  in Obi-Wan Kenobi mode ... only sexy.
So against his better judgment Alfred finds himself getting onboard with this hairbrained scheme.
Salmon Fishing... is far from perfect. A plot development involving assassins who think the sheik is too progressive feels a bit cheap, and Kristin Scott Thomas ’ mugging as a Downing Street bigwig threatens to derail the whole enterprise.
But director Hallström , whose resume runs from My Life as a Dog  to The Cider House Rules , Chocolat  and An Unfinished Life , has just the gentle touch to make it seem mostly effortless.