While a specific "list of 7" films under a unified "Sigma 2025" collection is not officially grouped in a single public guide, the following are popular 2025 Malayalam short films often searched alongside "Sigma" content or romantic themes: Kalyana Pranthu

Released in February 2025, "Kalyanathandu" likely explores the intersection of traditional Kerala marriage customs ("Kalyanam") and modern individualistic values. The 2025 landscape for these films is defined by:

The film is marketed as part of a "Sigma" collection, which typically features characters with high self-reliance or unconventional social roles, often leaning into adult-oriented (18+) or edgy themes. Context in 2025 Malayalam Short Films