100 Girls/Women in order

The "100 girls/women movie" likely refers to the 2000 teen comedy 100 Girls, where a high schooler, Matthew, spends a night with a mysterious girl during a blackout but doesn't learn her name, then searches a girls' dorm for her, mistaking her for his "true love," using a pair of panties as a clue, while a friend helps him gain confidence, encountering various girls along the way, including Wendy (Larisa Oleynik) and Arlene (Katherine Heigl). There's also a less prominent 2002 film called 100 Women, about an art student helping a girl named Hope, but 100 Girls is the well-known film matching the "100 girls" premise. 2 films, 3h 10m in all, in release order.

1. 1
   

   100 Girls

   2000 · 95 min

   Matthew, a college freshman, meets his dream girl in a dorm elevator during a blackout. He never sees her face, but instantly falls in love. In the morning, the power is restored, but the "dream girl" has vanished. All Matthew knows is that she lives in an all-girls dorm. He sets out on a semester-long journey to find his mystery girl among a hundred female suspects. Could it be Wendy? Dora? Arlene? Patty? Cynthia? Or the 95 other girls, any of whom could have been in that elevator with Matthew.

   Snoozefest
2. 2
   

   100 Women

   2002 · 95 min

   A young man returns to his ex-girlfriend and true love to discover the source of her increasing depression. As the young man earnestly tries to help his girlfriend through her troubles, their love begins to bloom.

   Snoozefest