Joseph Gordon-Levitt was the child star to watch when he landed his role in '3rd Rock From the Sun' -- 'ET' was on set in 1995 with the then 14-year-old, before the show even aired.
Actors Chris Pine and Macaulay Culkin both turn 34 today, and even though most of us probably thought the kid we all remember from Home Alone was much younger than the man who breathed new life into the role of Captain Kirk, we would be wrong.