Ray Lawrence’s Jindabyne boasts an excellent ensemble cast — it’s hard to beat Laura Linney and Gabriel Byrne — and this adaptation of a Raymond Carver short story (also borrowed for Robert Altman’s Short Cuts, i.e., the unnecessarily misogynist Huey-Lewis-pissing-into-a-river segment) does a fine job of illustrating the domestic frustrations that erupt to the surface when basic human decency is tested. But god almighty, is it ruined by a red herring of a subplot that thankfully goes nowhere and one of the most appallingly mawkish endings I’ve seen in a while.