Legally blonde (2001)

The film follows Elle Woods, a popular sorority girl who is dumped by her boyfriend, Warner Huntington III, because he believes she is not serious enough for his future plans. Determined to win him back, Elle decides to follow him to Harvard Law School.
Initially ridiculed for her appearance and perceived lack of seriousness, Elle proves herself to be a capable and intelligent law student. She gains confidence, makes new friends, and discovers a passion for law.