“Don’t cross the streams” can mean something entirely different than it in 1984, right? Sony Pictures is dialing up the wayback machine for a 30th anniversary (!!) reissue of Ghostbusters, the ectoplasmic effects-a-ganza that drew bigger crowds than even Indiana Jones that summer. While we wait for Ghostbusters 3, a 4K restoration of the horror comedy starring Bill Murray, Dan Aykroyd and the late Harold Ramis will re-haunt theaters for one week only starting August 29. Gather up Gozer and Zool, unwrap a 35-foot Twinkie, put on your legwarmers and re-live the mid-Reagan era with this flashback trailer. Just don’t come crying to us if “Who ya gonna call?” — or maybe even “I Want a New Drug” — gets Superglued to your gray matter. You’ve been warned: