Former muffler salesman Jay Kubassek has launched something called Aliquot Films. First output is something called “Meskada” with Meryl Streep‘s kid Grace Gummer . . . Australian director Jane Campion, Oscar winner for writing “The Piano,” arrives Monday. Her new film’s “Bright Star,” about poet John Keats’ love affair with Fanny Brawne. Opens September and screens at the Toronto Film Festival.