Brooklyn, New York, hardcore band, Most Precious Blood sample this movie at the end of their song "Driving Angry"
Marwan al-Shehhi, the hijack leader of United 175, was an Emirati, hailing from the United Arab Emirates (UAE) state of Ras al-Khaimah. This is the opposite of his actor, Adnan Maral, who is ethnic Turkish but holds German citizenship.
Ziad Jarrah and Mohamed Atta were Lebanese and Egyptian respectively and were the only characters played by actors of their respective races or ethnicity: Karim Saleh (Ziad Jarrah) is a French national of Lebanese heritage, having been born in Lyon, France to Lebanese immigrant parents, while Maral Kamel (Mohamed Atta) is an ethnic Egyptian who holds a dual citizenship of both Egypt and France.