Factual error: Their 'spot' for drinking is apparently in the French Quarter because of the street signs. That said, they are drinking Budvar beer. If you know about Budvar, it is the original Budweiser beer from the Czech Republic. Budweiser sued Budvar and won, preventing them from using the name 'Budweiser', even though Adolph Busch came up with 'Budweiser' after going to Pilsner, Czechoslovakia. Budweiser being the bully, and their lawyers and all, won the lawsuit. So now the beer is sold as 'Czechvar' in the US and 'Budvar' everywhere else, meaning they couldn't be drinking it in the USA.
Continuity mistake: When Ross and Galgo are in the plane taxiing to the runway (with propellers rotating), and see Ross' former team members standing in the way, the propellers are standing still. Seconds later, the propellers can be heard rotating again. (01:21:30)
Visible crew/equipment: When they guys meet up with Caesar, Barney says "You walked into that one." When he does you can see 2 people reflected in his sunglasses, other Expendables members, but you can also see what appears to be a camera outside the boat. (00:13:20)
Continuity mistake: At the start, there is a bit of yellow tape on the glass of the helicopter that disappears between consecutive shots.
Visible crew/equipment: When Barney walks out the hospital, look at the doors and you can see a big crowd reflected watching the filming. (00:27:15)
Continuity mistake: When Ross is standing on the ladder working on the engine you see on the left side of the plane 7 skull decals. There are 4 on top and 3 underneath. The 3 underneath are at the back of the 4 decals. Then when the plane is taxiing on the runway the bottom 3 skull decals are at the front of the 4 decals. (01:17:30 - 01:19:35)
Continuity mistake: During the fight at the end between Stonebanks and Barney, Barney draws blood from Stonebanks mouth, between shots this keep disappearing and reappearing. (01:48:10)
Continuity mistake: When Barney reaches for the revolver in the back of his belt, the way he holds it changes between shots. (01:47:40)
Continuity mistake: As Barney stands up after being shot by Stonebanks, he has his throat mic still on (black plastic round his neck). When Banks says to take the armor off, it has disappeared, only to return when he takes the armor off. (01:47:40)
Audio problem: When Smilee says they got reinforcements, Barney says "shit". But his mouth doesn't move. (01:32:00)
Continuity mistake: When we see Smilee fighting in Mexico the amount of dirt on his shirt keeps changing instantly. It's easy to spot as he has a white shirt on. (00:43:00)
Continuity mistake: Galgo says "age is only a state of mind" when he says this he has his hands up to his head. Camera cuts and they have disappeared. (00:40:00)
Continuity mistake: When Barney, Christmas and Toll Road exit the shipping container, the door is open halfway. Camera cuts to another angle and the door is wide open. Camera cuts again and its back to half open. (00:18:40)
Continuity mistake: Doc places the shipping container down on top of one container with none either side but 3 in front of the door. When he picks it up, it is a block of 2x2 containers. (00:18:05)
Continuity mistake: When Doc asks Christmas his name, Christmas is either looking at his chart or at Doc depending on the angle. (00:09:35)
Continuity mistake: When Barney and Christmas are talking in the cockpit at the start, Christmas says "I doubt it" while looking at Barney. Camera cuts and he is now looking at the chart in his lap. (00:09:20)
Revealing mistake: At the start, Doc shoots one of the watch towers that explodes. However, it explodes in a way that shows it to be made of something other than concrete. Something like card. (00:05:30)
Continuity mistake: At the start, after placing the wire along the train tracks, Gunner gets onto the left hand side of the helicopter and Christmas gets on the right hand side. When the shot changes, they have swapped sides. (00:01:30)
Revealing mistake: When the tanks are firing on the building near the end, some of the shots of shells hitting the building are reused. (01:35:00)
