The Indian film SILAA will feature Son Doong Cave, the world’s largest known cave, as one of its key filming locations. Vietnamese authorities confirmed the news.
The film has a production budget of about $4 million. Le Minh Tuan, head of Quang Tri Province’s Department of Culture, Sports and Tourism, confirmed the filming plans on Tuesday.
The Bollywood team has selected several locations across the province. These include the famous Son Doong Cave.
“We plan to welcome the film crew at the airport and host a friendly gathering after filming wraps in Quang Tri,” Tuan said, according to Tuoi Tre News.
Strict access rules limit crew inside cave
Omung Kumar will direct SILAA. The film will become the first Bollywood production to shoot inside Son Doong Cave.
Around 100 crew members will spend three weeks filming in Vietnam. The production will visit scenic locations in Quang Tri, Cao Bang and Quang Ninh provinces.
However, strict environmental rules will limit access to Son Doong Cave.
Nguyen Chau A, CEO of Oxalis Adventure, confirmed that the company has signed an agreement with the Indian film team.
Only 12 crew members can film inside the cave because of environmental protection rules, he said.
The production will also film scenes at Hang Tien, Tu Lan and Chuot Caves in the Tan Hoa region.
Filming will begin early next month. Meanwhile, SILAA is expected to receive a global release in 2026.

Son Doong’s international fame continues to grow
Son Doong Cave sits inside Phong Nha-Ke Bang National Park. The cave stretches for nine kilometres and measures about 150 metres wide.
Its ceilings rise more than 200 metres high. These dimensions make Son Doong the world’s largest known cave.
The cave also holds national treasure status in Vietnam.
Son Doong gained international attention in 2015. ABC News featured the cave during a live segment on Good Morning America.
Meanwhile, administrative changes have placed Son Doong within the new Quang Tri Province.
Vietnam created the new province by merging the former Quang Binh and Quang Tri provinces. The move formed part of a wider administrative restructuring across the country.
As a result, Vietnam reduced its number of provinces and cities from 63 to 34.
The upcoming SILAA production could bring even more international attention to Son Doong Cave and Vietnam’s natural landscapes.
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