Mila jumped to the A-list in 2011 and did what every actor making the leap does: dumped her significant other. That was no surprise. What was shocking, however, was that the boyfriend she kicked to the curb was "Home Alone" star Macaulay Culkin. Eight years, they dated -- and no one talked about it. Then she blinks in the direction of Justin Timberlake and it's front-page news. Welcome to the A-list, Mila.