Audrey Tautou: I think I've said this about her before, but Audrey Tautou is cute enough to build an entire movie around. The French flick Amelie (if you haven't seen it, do so if only for the indie chick tail it might one day get you) is basically about a young woman (Tautou) who goes around improving peoples' lives and teaching the audience that the world is a cute, fun, wonderful place to live.

None of that movie -- not a single moment -- would have worked if Audrey Tautou wasn't irresistibly adorable in every friggin' way. If you haven't seen the movie, it won't do me any good to describe the myriad of ways Tautou manages to constantly out-cute herself scene after scene ("I skip stones" is probably one of the most adorable sentences ever spoken by anyone). Just see the movie, and understand.
Milla Jovovich: Bear with me here -- I know she looks like the most ridiculously airbrushed supermodel you've ever seen in the above photo...but remember The Fifth Element? Remember how bruised, and soot-covered, and occasionally makeup-less she was in that? And yet, we all still wanted to bang her?
I rest my case.

Natalie Imbruglia: It's a shame Natalie Imbruglia hasn't had more of a career since her hit single "Torn" (and no, visually representing the lyrics with the comedian who originally parodied her doesn't count). She was attractive enough to get a spot on a crappy Australian soap opera, Neighbors, then jump immediately into a world-famous music career, the high point of which consisted of a song that causes involuntary erections in anyone who hears Imbruglia sing the lyric "lying naked on the floor."

Depending on how one looks at her, Imbruglia is either cute and meek, or two steps away from being a sex-craving goth chick. We all want to make out with her for different reasons, but it doesn't take eight pounds of makeup or a pushup to get us there.
Rose Byrne: That picture shows Rose Byrne at her least attractive.
Her least.
That's a publicity photo from Sunshine, where the Australian-born Byrne plays a character who, despite being endlessly compassionate, might as well be a dude. She doesn't play up her sexuality, never makes out with Cillian Murphy, and generally does whatever necessary to keep the audience from getting distracted at her painful, natural good looks. It doesn't really work -- if you put the Scarecrow and Rose Byrne on screen together, it's not hard to imagine who the audience is going to want to look at -- but the point is that Byrne looks effortlessly great even when she isn't supposed to.

She can also fake a really good American accent and that's super hot for some reason and god dammit I need to move to Australia.
Mary Elizabeth Winstead: Huge eyes, big cheeks, round face. Mary Elizabeth Winstead is the very textbook definition of natural adorable-ness. Or would be, if "adorable-ness" was a word.
Though we haven't seen much of her in the last six months outside of the Death Proof DVD, it's hard to forget how balls-out, effortlessly cute Winstead is in damn near every (probably subpar) movie she's ever been in. In the span of just a year or two, Winstead has supplied filmgoers of America with visualizations of more repressed sexual urges than any other actress onscreen today (with the possible exception of Ellen Page and the pedophile/pregnancy fetish subculture).

She was a cute cheerleader, a cute horror heroine, and a cute daughter of John Motherfucking McClane. As was the case with Imbruglia, you can dress Winstead up any way you want -- but at the end of the day, she'll still be one hell of a natural beauty.