So Rosalind, the daughter of an exiled duke, hides behind the verbal dexterity she practices with her cousin Celia (the pouty, flirty Rebecca Callard) and a fool named Touchstone (Michael Siberry, who evinces a lively wit). This Rosalind has a sharp tongue that surprises even herself, and Rebecca Hall renders Rosalind's often complicated language with a wholly comprehensible sense of its meaning.