Something wrong with the movie

Rating: 7/10 (21 March 2006)

The movie was okay. It was sad but yet made me laugh. I watched it in my 9th grade American History class. The dialog was great, the characters seemed real. You could really feel their struggles, pains. The happiness and how close the family was also struck awe in me. But it has come to my attention that a semi truck was in the background of the New Mexico diner...this movie was set in the 1930's but the first semi truck did not come to be until the late 1940's early 1950's....Please correct me if I am wrong. I am sorry if this spoils it but I just wanted you to know so if you watch it, you can point it out or see it.