Gratefulness also Katanho is a Cambodian drama film, based on a true life of a young girl who lived in Phnom Penh. The film was considered one of the best films of the year in Cambodia. The film had a highly successful theatrical run and received several awards at the Khmer film festival. These included the best actress award for Ly Chan Siha. Despite being based on true life, the film has some similarity to Thailand's 1985 film Walli (thai:วัลลี) .