The grand opening of Sylvan Thirty starts bright and early Saturday with the Big Run, with 5k, 10k and half marathon courses.

The House of MacGregor’s annual hat sale starts at 4 p.m. Friday. Spring/summer 2014 and fall/winter 2013 hats are 50 percent off.

The Oak Cliff Society of Fine Arts presents “Annie Hall” for movies on the lawn at Turner House Friday. The show starts at 7:30 p.m. Bring a blanket or lawn chair; the movie is free, and concessions are for sale. No dogs allowed.

Artist Michael Savoie opens “Blind Ambition” from 6-8 p.m. Saturday, Sept. 27, at his Savoie Gallery on Tyler Street.