Tonight! Reese Witherspoon...She was a small-town girl who had no idea what was coming next. From "Legally Blonde" to "Cruel Intentions" and a rom-com reign that changed Hollywood. ET was there for all of it including the real-life love story that played out on screen. Plus, the role that made her an Oscar winner and the panicked phone call before filming even started. Plus, the movie that almost broke her and the role she says matters more than any other. ET vault unlocked: Reese Witherspoon.