The fourth hero we meet is also a migrant. A legal one this time. "The only war I've ever run from is the one in my head", — says Don in one of the conversations. Don is a soft American boy from a family that has everything but mutual support and understanding. Aspiring to be a painter, he was pushed by his father to professionally play tennis. The insistence of his parents cost Don a lot. Having neither friends nor girlfriends growing up, he ended up with zero social skills and, ironically enough, a high libido. Clearly hurt, Don feels guilty for his dissatisfaction with life.
There is a serious issue hiding behind the mask of Don's comicality. How come you have financial stability, a good job and an attractive appearance and still complain? Seems like the right time for society to understand that external well-being never guarantees an emotional one. Hooking up with his 50-year old clients and being intrusive with his "only friend", who hates him, Don first evokes the viewer's disgust, then sympathy and, finally, love. And he's indeed a reason for a good laugh. The scene when he bursts in tears while saying that Don is short for Donald ( small political satire here ) alone is a marrow of comedy.
The whole movie is imbued with love and faith. Elvis's love for his wife, Brando's faith in humanity, Camila's faith in Don, Don's love for Camilla and, of course, their mutual faith in the success of the operation. The four decide to help Elvis cross the border and come up with the most bonkers ideas. The anticipation adds spice to the sweetness of the movie. The viewer forms an attachment to the heroes and it's surely stressful to watch them driving up to the custom-house. What's the outcome gonna be?