Creepiest Movie Children - Rotten Tomatoes
Village of the Damned (1960)

The blond bowl cut was a perfectly acceptable look until these creepy little glow-eyed freaks showed up and ruined it for everyone. Other things they ruined: lives, public property, and the entire British village of Midwich, which seemed like it must have been a pretty nice place to live before they decided to damn it all up. Those surly, baggy-pantsed delinquents hanging outside your building don't seem so bad now, do they?