What aspect of the experience of Chinese immigrants covered in the film made the greatest impression on you?

What aspect of the experience of Chinese immigrants covered in the film made the greatest impression on you?  Discuss both why it made such an impression and what you think it can tell us about the immigration policy and/or migration patterns of the time period.  Can we learn anything that might be valuable for understanding present-day immigration (or reshaping present-day immigration policy) from what you have cited? Please be specific when referring to the film and reference time stamps where possible.  Please also feel free to comment on anything else you found worthy of discussion from the film.