Finally—an excuse to dress up as an indestructible cheerleader … or a bespectacled  Asian guy who can manipulate the space-time continuum. Take your pick from a colorful cast of characters — the Angelika at Mockingbird station is having a Heroes premiere-watching party and guests are invited to dress as their favorite hero from the NBC show. 7 p.m. Monday, September 22, Angelika Film Center.