Writer-director John Boorman (“Deliverance,” “Excalibur,” “Hope and Glory”) has never been afraid of taking chances, and that definitely continues in this witty, suspenseful, and flawed 2006 thriller-cum-family drama. “The Tiger’s Tail” reteams Boorman with his lead actor from 1998’s “The General,” Brendan Gleeson (“In Bruges,” “28 Days Later“). This time, Gleeson is a renowned Dublin real estate capitalist with a calm but frosty marriage to wife Kim Cattrall, a strained but affectionate relationship with his Marxist teenage son (Briain Gleeson, the character actor’s actual offspring), and a business on the edge of collapse. All of that, however, is just par for the course until an exact double turns-up and appears bent on the most extreme form of identity theft.

As you might expect, this is a tale full of twists and turns. Unfortunately, several of them are weirdly contrived (think “Trading Places” meets “Ordinary People” with a distasteful dash of “Straw Dogs”) and many moments are just plain overheated –- at times Boorman seems to want to bludgeon us with composer Stephen McKeon’s score. Still, “The Tiger’s Tail” is salvaged by plentiful tension, humor, heart, and some very good performances, not only from Gleeson in a showy dual role, but also from son Briain and an especially moving turn by veteran actress Sinead Cusack. Best of all is a conclusion that takes the film to a place very few thrillers go. In his mid-seventies, Boorman remains a big-hearted filmmaker and this is a messy but big-hearted film.

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