I remember seeing the Davy Crockett movies, too. Some 60 years later, I got to see the Alamo. I was shocked! You have to go outside to change your mind. It really made me appreciate how such a small group of men managed to hold off such a major attack.
If you go about 2 hours west of San Antonio, to Bracketville TX, you can see the movie set that John Wayne had built on some land that supposedly looked like San Antonio at the time of the Alamo fight.