Continuity mistake: When Beck is holding the ice bag, it is in his right hand and he places it on his right side. A few moments later the bag is on his left side. (00:09:40)
Continuity mistake: When Brian says "Who'll I make this out to?" about to sign an autograph for Beck, there is no hand on his shoulder. When it cuts, a hand is resting on his left shoulder. (00:03:00)
Continuity mistake: Mariana puts a bottle of beer between Hatcher and his hat. When the little man runs out of the bar you can see the bottle is gone and the hat has moved closer to Hatcher. (00:23:25)
Continuity mistake: Watch Billy's towel hanging over his shoulder. First there are stripes on the towel, then the towel is folded and the stripes are gone, then the stripes reappear again. (00:08:50)
Continuity mistake: When Travis Walker is fighting the guy in the store, if you watch the window as he is doing his "thunder lighting" effect there are sometimes cows running and sometimes not. (01:20:25 - 01:21:25)
Continuity mistake: When the Rock and the pilot are driving from the airfield to the town, there is a section where you can tell it is two different people entirely sitting in the Jeep. They are passing a sign reading Hell Dorado. (00:14:15)
Continuity mistake: When Travis says "There's always an option 'C'", he grabs a bottle with his right hand and swings it against Beck. When it cuts, he is swinging the bottle with his left hand instead. (00:22:35)
Continuity mistake: After Beck has been shot with the bags, one bag is lying by his foot and the other a foot away from his chest. When it cuts, the one that was a foot from his chest is now lying about three feet from him. (00:08:15)
Continuity mistake: Towards the end The Rock fights with 3 guys using whips and he gets some large wounds on his face. When he delivers the kid back to his dad the wounds are gone.
Continuity mistake: When Beck and Travis fall to the jungle, the white T-shirt that Beck is wearing under his jacket and shirt gets dirty, then becomes white again.
Continuity mistake: Notice the clock in the background when Travis is talking with Mariana. It changes between shots, during their whole conversation. (00:14:20)
Continuity mistake: When Beck puts Travis to the floor in the bar, Travis lies on his stomach. But when Beck lifts him up, you see him lifting him up while Travis lies on his back. (00:22:45)
Continuity mistake: Billy is discussing a new mission with Beck and has a towel around his shoulder. It cuts to another angle and the towel is gone. Then it reappears in the next shot. (00:09:40)
Continuity mistake: In the jungle when Beck is handcuffing Travis he first takes Travis' arm behind Travis' neck. Then it cuts and both Travis' arms are behind his neck. When it cuts again both Travis' arms are behind his back being handcuffed. (00:30:20)
Continuity mistake: At the start of the scene where The Rock walks into the bar in Brazil for the first time, you see him put away his sunglasses in his jacket. Then, the camera gives a wider shot and he repeats the action. (00:20:45)
Answer: Yes, he says so in the movie. He explains that it gets too messy. Also, it shows that he is stronger than using an easy weapon like a gun. People like to see fist fighting, rather than gun fighting.
Josh Appelbaum