The movie shows Darrell Royal and Texas football from 1966 to 1969, yet the painting in Darrell's office of Texas Memorial Stadium, shows the upper deck addition that wasn't added until 1972.
During the Texas-Arkansas "Game of the Century", the stadium has lights. Arkansas did not install lighting at Razorback Stadium until 1990, plus the Razorback's first night game wasn't until 1997.
Several of the players are wearing modern day face masks on their helmets and not the kind that was available in the 60's.
During the Texas-Arkansas game, the game looked like it kicked off at dusk. The actual game kicked off at noon.
During the Texas-Arkansas game, the weather was partly cloudy. The actual game was played in an icy cold fog, setting an eerie feeling through the game.
In the Arkansas game, Texas scores a TD to make the score 14-6. When Texas decides to go for 2, the announcer erroneously says this is dangerous, as a miss would make it a '2 possession game'. At 14-6, following a failed 2 point conversion, it is still a 1 possession game.