There are several excellent recent documentaries from CBE that work well to prep students for intercultural interactions, helping them to develop more self-awareness, openness, and empathy. These include the films "Crossing Borders" and "The Dialogue"

I really like these documentaries for both pre-departure for traditional study abroad and for COIL/international virtual education experiences. Watching and then discussing this film allows students to open up and be vulnerable about their own processes of becoming more aware of the cultural stereotypes they have of others as they prepare to interact more intimately through immersion or online interaction. If you don't have access to the whole film through your institution, cannot afford to purchase a copy, or simply want to use shorter film clips as part of a dialogue or written reflection activity, there are several excerpts available for free streaming from the Crossing Borders Education website.