This pie combines fresh yellow and red cherries.
Preheat oven to 400 degrees. On a lightly floured work surface, roll out one disk of pate brisee to a 1/8-inch-thick round, about 13 inches in diameter. Fit dough in a 9-inch pie plate.
In a large bowl, combine the cherries, sugar, and tapioca, and toss to coat evenly. Pour the filling into the prepared pie plate, and set aside.
Roll out remaining disk of dough as in step 1. Using a pastry wheel or a sharp pairing knife, cut dough into 1-inch-wide strips. Lightly brush rim of dough in pie plate with water, and weave the strips of dough on top of filling to form lattice. Using kitchen scissors, trim strips to create 1-inch overhang. Tuck strips under rim of shell, and crimp to seal. Chill pie in refrigerator at least 30 minutes.
Bake pie 20 minutes. Reduce oven heat to 350 degrees; bake until crust is deep golden brown and the juices begin to bubble, 40 to 50 minutes more. Transfer pie to a wire rack, and let stand until just warm or room temperature. Serve with ice cream, if desired.