 In 1999 he directed the adventure film "Caravan" about survival in the Himalayas starring Thinle Lhondup which became the first Nepalese film to be nominated for a Best Foreign Film Award at the Oscars.Valli has also shot a documentary with Diane Summers on the honey hunters of Nepal documenting honey hunting by the Gurung tribesmen of west-central Nepal.In it, they enter the jungle in search of wild honey where they use indigenous tools under precarious conditions to collect honey.