How to Make Millions Before Grandma Dies, known in Thai as Lahn Mah, is a 2024 Thai comedy drama film directed by Pat Boonnitipat from a screenplay written by Pat and Thodsapon Thiptinnakorn. It stars Putthipong Assaratanakul and Usha Seamkhum in their debut feature film roles. In the film, M (Putthipong), a university dropout low on money, volunteers to take care of his terminally ill grandmother (Usha) in the hope of pocketing her inheritance.