Good news D.C. Unlike last weekend, we’ll only have to suffer through this rain today; Saturday will be dry and Sunday will be beautiful. Awesome. FRIDAY: >> We hear some big movie opened this week, with “lazer swords” and some dude wearing a black hat. What was it called again? Eh, who cares — especially when you can watch “Napoleon Dynamite” again on the big screen. The Landmark E St.’s Midnight Movies bring pretty much…