WeakTwin.com

Even as I write this, I can’t remember which picture is Katy Perry and which is Zooey Deschanel, thus making it impossible to determine the weak twin. I feel like it’s a CG effect or something.These two look so similar they could start playing pranks on the town in some sort of hilarious family comedy.

It isn’t exactly breaking news, and I believe both women have even addressed the kooky similarity, but it’s probably the best example of female celebrity weak twins.

Australian actress Abbie Cornish might be beautiful, and possibly the cause of Reese Witherspoon’s divorce, but she is still not the strong twin when compared to Charlize Theron.

I like Jeff Daniels and he’s really only the weak twin here because I’ve met Bill Pullman and he was cool. But, Daniels does look a bit like the less-attractive older brother in thsi equation. (Thanks to Keith for pointing this one out.)

I don’t think anyone can be a “weak” twin if they look like gorgeous actress Rachel McAdams, but actress Kerry Knuppe could be a dead ringer for Sherlock Holmes star. I first noticed the similarities when I saw Knuppe in Skills Like This at the Starz Denver Film Festival a couple years ago. Just take a glance at these pics and try to pick out who’s who between these doppelgängers.

Since Winehouse can spin off many weak twins, here’s another one I’ve noticed while glancing at some non-crackhead photos of her. In a certain light–and by that I mean with ample amounts of retouching–she bears a slight resemblance to tattoo artist extraordinaire (and reality star) Kat Von D.

Winehouse may be a total mess, but she has real talent and she kicked Grammy ass with her album. Von D is a talented tattoo artist, but her fame through banging Nikki Sixx and her reality show take her down a few pegs. I’ll leave it to you to determine who is the weak twin in this scenario.