No the four seconds was not at a scary part. It was when the Freelings went over to the neighbors' house to ask if they were experiencing anything unusual, all the while being attacked by mosquitos.
It was just an inconsequential bit of dialogue, but there's a really noticeably (to me) sloppy jump cut at the end of that scene in the release version where they poorly edited out those 4 seconds.
Anyway, yeah, me and my pals got really high in the restrooms at the long-gone Plitt Theaters in Century City before the show, and that might have had something do with it being really scary ... and subsequently becoming one of our favorite films of all time.
Don't knock Poltergeist around me.
