Johnny Depp was a winsome, warm-hearted womanizer in Jeremy Leven’s Don Juan DeMarco, but Lorenzo Da Ponte takes a somewhat darker view of the legendary rake. The librettist for Don Giovanni, Mozart’s glorious 1787 treatment of the story, Da Ponte based his starkly judgmental depiction of the “young and extremely licentious nobleman” on an earlier buffalibretto by Giovanni Bertati and on Moliere’s Don Juan—which may account for what experts call the opera’s “perilous balance” of comedy and tragedy. But Mozart alone is responsible for the two lavish soprano roles, the two bravura baritone parts, and the wealth of stunning set pieces—“Or sai chi l’onore,” “Il mio tesoro,” “Ah taci inguisto cor”—that make this opera one of the undisputed all-time greatest. At 8 p.m. tonight at Wolf Trap’s Filene Center, 1624 Trap Rd., Vienna. $16-42. (703) 255-1860. (Trey Graham)