Scream 2 Original Script -
Yes, you read that right. In the original script, and her best friend Hallie were the Ghostface killers. Not Mrs. Loomis. Not Mickey.
The rewrite is often praised because:
In the released film, the killers are (motive: revenge for her son Billy) and Mickey (motive: wanting to get caught for a trial). It works brilliantly. scream 2 original script
The person under the mask is Hallie (Elise Neal), Sidney’s roommate and best friend. Yes, you read that right
: By changing the killers, the filmmakers allowed Derek's death to be a tragic moment of Sidney's lost trust rather than another betrayal. Loomis
In this version, Hallie reveals she is the illegitimate daughter of Hank Loomis (Sidney’s mother’s lover, whose affair sparked the original murders). Because Sidney’s mother broke up Hank’s family, Hallie grew up in poverty and hatred while Billy Loomis (her half-brother) lived a decent life.