Something I found interesting about Up The Yangtze was when the narrator in the beginning said something about the people going on the river cruise to see what they thought was the "Old China," when in fact it was disappearing right before their eyes. The hybridity of cultures on the boat and their perceptions of China gave the documentary depth because they all were experiencing a different China.
The Chinese employee on the boat were working as their home disappeared around them, like in the case of the young girl, Yu. On the other hand, the western passengers were given an entirely different view of China since for most, it was their original perspective.
The interaction between passengers and crew was also interesting because the crew was more westernized to accustom themselves to the tastes of the passengers. With English names and behavioral training, it was like both parties were getting a taste of living in each others' cultures while experiencing something new around them with the exposure to china and the river's rising taking place.
Overall I thought the movie was interesting and I saw these rhetorical situations in the film to create complexities in the story which ultimately created a successful documentary.