Peter Debruge Chief Film CriticAs if sensing that the election would provide enough nail-biting excitement to last Americans for days, distributors have largely backed off the first weekend in November.Focus Features is releasing a solid Kevin Costner-Diane Lane thriller with serious Red State appeal in “Let Him Go,” for those with access to theaters, and there are a number of backlogged festival movies picking this weekend to open: the best of them is “Proxima,” featuring Eva Green as a French