When Jake starts to fall off the bull onto the barrel made of red tires, there is a yellow cloth covering the stack, but when the POV switches to show him landing on the tire barrel, there is no cloth visible.
At about 19:30 in: Marvin and Buford each get a lasso around David and start dragging him over some desert terrain that is spotted with clumps of green bushes. Then the two bad guys head into the river. A brief camera shot from in front of the two looking back at them as their horses enter the water and the ropes are gone and David is no longer behind them nor is he anywhere in the shot. Then the camera angle changes and they are once again dragging David.
David is outside at 5.45am, but the sun is directly overhead, meaning it would be around noon or 1 pm.
Many women in the rodeo crowd have old-fashioned hairstyles, revealing this to be stock footage filmed many years beforehand.
When The Hulk appears at the rodeo the crowd stand to look. The crowd is from a different stock image and not from a rodeo crowd. No one is wearing cowboy hats or shirts.
When the Hulk drags two cowboys by a rope down the creek, you can see the front hitch of a cart the two man are attached to.
When the Hulk wrestles the bull to save his friend, patches of his green makeup appear and disappear between edits.
On the DVD at 41:43 you see Fred Ward and Richard Fullerton about to throw David Banner into the bull pen. At 41:52 you see Richard Fullerton sitting on the fence on the left side of the screen. Then at 41:55 you see Fred Ward and Richard Fullerton climbing the fence to take a seat next to Jesse Vint. He sure does get around fast.