>>I can't comment how how commonplace it is, but having worked in an office with many women there seemed to be a lot of animosity towards the more attractive women from the less attractive women. Could have just been that office.

Nah, this is incredibly common. It goes even further: if an attractive woman is successful, her entire success will be attributed to her attractiveness, rather than her intelligence or skill. It's a major factor that contributes to the glass ceiling they inevitably hit.