Things You Can't Believe You Took So Long To Notice:

Sheriff Brackett's pipe.

Two people standing on their porch and peeking over the hedge in the background of a shot of Annie and Laurie. Right before the "Hey creep!" behind the bushes scene.

By the time Laurie gets to her house from walking home from school it clearly has rained but we never see it rain.

ahahha

Sandy Johnson, who played Judith Myers, was only a C-cup, which is about average, not big. Janet Lupo, who appeared in Playboy magazine during the same time period that Johnson did (mid 1970s), was much bigger (DDD-cup). Rosemarie Hillcrest, who appeared in Playboy in the mid 1960s, was also a DDD-cup. But even those women are small compared to women like Yulia Nova and Linsey Dawn McKenzie.

I noticed that the first time I saw the movie!