Someone Else is a poignant short film that holds a special place in Shamita Siva's career as one of her earliest acting roles. Written and directed by Luke McCarthy, the film explores sensitive and impactful themes, resonating deeply with its audience. Shamita portrays Katie, a character who is confident in her identity as a lesbian and maintains a close friendship with her workmate, Edward.

The narrative takes a complex turn during an office party where, after a night of drinks, Katie and Edward end up sleeping together. This unexpected event leads to a profound day of connection that prompts Katie to confront and question her sexual identity through a series of candid and sometimes uncomfortable discussions.

Shamita, who identifies as bisexual, found Katie's internal conflict relatable as it echoed her own experiences with identity. Des Flanagan's portrayal of Edward is noted for its authenticity, capturing the often-intrusive inquiries posed by straight individuals about queer identities. The film delicately navigates the idea that exceptions to 'the rule' might exist, challenging Katie to reconsider her understanding of her sexual preference, adding a layer of introspection and realism to this impactful story.