Here are the two sources to use for the assignment:
Wolf, Clark. "Commodification, Exploitation, and the Market for Transplant Organs: A Discussion of Dirty Pretty Things." (2009): 170.
Wills, Jenny. "I’s Wide Shut: Examining the Depiction of Female Refugees’ Eyes and Hands in Stephen Frears’s Dirty Pretty Things." Refuge: Canada's Journal on Refugees 24.2 (2007): 115-124.