A Useful Ghost

A Useful Ghost (Thai: ผีใช้ได้ค่ะ, romanized: Phi Chaidai Kha) is a 2025 supernatural black comedy-drama film directed and written by Ratchapoom Boonbunchachoke, in his directorial debut. It stars Davika Hoorne, Witsarut Himmarat, Apasiri Nitibhon, Wanlop Rungkumjad, and Wisarut Homhuan. The film is a co-production of Thailand, France, Singapore, and Germany. The film had its world premiere at the Critics' Week section of the 2025 Cannes Film Festival on 17 May, where it won the Grand Prize. It was theatrically released in Thailand on 28 August by GDH 559. It was selected as the Thai entry for Best International Feature Film at the 98th Academy Awards, but it was disqualified. Boonbunchachoke has voiced his hope that the film would spark political debates in his home co