In the version that leaked online, the killers were not Mickey and Mrs. Loomis as seen in the final film. Instead, the "primary" killers were: Derek Feldman : Sidney’s boyfriend (played by Jerry O'Connell). Hallie McDaniel

In the original script, the killers were and Hallie , Sidney’s college best friend.

The original Scream 2 script is a compelling "What If." It is a tighter, meaner, and more personal story than what eventually hit theaters. While the theatrical release is a classic, reading the original draft reveals the jagged edges that were sanded down by studio interference.

Ultimately, the story of the Scream 2 original script is the most Scream thing possible. It’s a story about the collision of art, commerce, and fandom. A script written about the dangers of sequels and the toxicity of fame was destroyed by... the fans' hunger for spoilers. The leak was, in a strange way, a real-life Ghostface attack—not on Sidney Prescott, but on the creative process itself.

Because the leak spoiled the Derek/Hallie reveal, Craven and Williamson changed the killers to Mrs. Loomis (Debbie Salt) and Mickey (already a killer but now without Hallie).