Glass Onion is a genuinely entertaining, well-crafted whodunit that'll keep teens and adults guessing. It's smart without being pretentious, funny without being silly, and rewards viewers who pay attention to details.

But let's be clear: this is NOT a family movie for anyone under high school age. There's murder (on screen), violence, adult themes about fraud and conspiracy, and a 140-minute runtime that requires actual focus. The 'glass onion' conceit is clever—layers that reveal something simpler underneath—but getting there involves watching wealthy people lie, cheat, and literally kill.

For families with teens 14+, this is a solid movie night pick. It'll spark conversations about truth, privilege, and what happens when people prioritize loyalty to powerful friends over doing the right thing. Just maybe don't start it at 9 PM on a school night—you'll all be up past bedtime trying to see how it ends.