Why was The Sand Pebbles considered an ambitious film?

The Sand Pebbles (1966) is considered an ambitious film primarily due to its grand scale as an epic, three-hour-long adventure production directed and produced by Robert Wise.12

The film’s ambition is reflected in its sprawling narrative, which depicts the complex political climate of 1926 China through the experiences of sailors on a U.S. Navy gunboat. Beyond its significant runtime, the production was noted for its stunning visuals and a high-quality musical score by Jerry Goldsmith. The film also tackled controversial themes by drawing parallels to the ongoing Vietnam War, adding a layer of social and political weight to its epic structure. Its technical and artistic execution earned it multiple Academy Award nominations, including for best picture, cinematography, and sound.12