Mona Lisa Effect

I can't remember if this was from some movie (I'm thinking Julia Roberts for some reason..) or if someone actually told me this..or if I just like the name of the concept and feel the need to define it, but I was thinking about this idea the other day.

'Mona Lisa 'Effect: (n). a condition in which the attractiveness or the 'aura' of a person is greatly appealing from a distance, but up close is disagreeable; first impression of character is intriguing, but in fact is undistinctive and flat.

This seems to be kind of a common phenomenon with me for a lot of people I meet (after I guess having preconceptions about them.)
Then the illusion is shattered upon the first (few) interaction(s).

No illusions here.