Three 10 year old kids who were born during a solar eclipse, become serial killers with no consciences because Saturn was blocked during the eclipse - um, OK, whatever gimmick works to get these kids murdering is fine with me. It's an above average slasher, which doesn't really mean much since most of the subgenre is below average, but it's competently made and feels more like a demented black comedy than a horror flick. The kids do a good job and seem to have a blast being as bad as possible, turning their neighborhood into slasher territory. There are some elements here lifted from Halloween, despite being barely anything like the Carpenter film - especially a tracking shot down a suburban street with our meek lead and her friend, who even gets a quick visit from her cop father - perhaps a misinformed producer decision to cash in on a film that's nothing like the one they're making. There's a quick blink and you miss it appearance from the American Ninja himself, the anti- charismatic Michael Dudikoff. Bloody Birthday isn't especially bloody, but this lunacy is never anything but entertaining.