The border patrol work at the border crossing between Mexico and the United States, but you can also see them around the city trying to capture immigrants. Back in 1933, during the Great Depression, the border patrol deported every one that crossed their way. They didn't ask for a birth certificate or any identification, if you looked Mexican, you were deported. There are several ways on obtaining a U.S. citizenship. One way that was used in the movie, was marrying a U.S. citizen.
Immigrants sometimes marry U.S. citizens to prevent deportation.
The second step is to obtain a letter from INS to get an appointment for a personal interview on a certain date and time. The third step is the interview itself, where many questions about the U.S. Constitution are asked, also known as the U.S. Citizenship Test. Mexicans have many customs. They like to follow traditions their past generations have left for them to follow. One of the traditions that is strongly followed by many Mexicans is to throw the bride's bouquet during the reception of a wedding.