Continuity mistake: When Vilian puts his sunglasses down at the end, they move between shots. (01:20:30)
Continuity mistake: When Booker and Barney meet for the first time, Barney's necklace is either covered or uncovered depending on the shot. (00:56:00)
Continuity mistake: When Vilain has the gun to Billy's head he has it in his right hand. However when he is squeezing the trigger, it's his left finger. (00:36:00)
Suggested correction: It seems to me that it's still his right hand but the camera angle changed for the close up for a better reveal of the trigger pull. So in real life, the camera would have been to JCVD's right side during the scene, but then the camera switches to his left side for the close up. Watching it in real time, it can look like the camera just does a zoom in and now the hand has switched.
Continuity mistake: When the bloke has the knife to Christmas's neck, the position of the blade changes instantly. Note the end of the blade and his ear. (00:35:50)
Audio problem: When villain says "Well done, I'm impressed" the words don't match what he says and are a clear overdub. (00:34:10)
Continuity mistake: Just after Jet Li jumps out of the hatch at the start, we see the other guy taking a drink from his hip flask and you can tell the hatch is still open by the wind blowing his hair. Camera shows the outside of the plane and the hatch is closed. (00:15:00)
Audio problem: When Jet Li is using the frying pans as weapons at the start, he hits different people in different places on the body, but gets the exact same sound. (00:05:40)
Continuity mistake: At the start, the lead truck reverses with the coming soon plate right on the ground. In other shots, there is about a foot gap. (00:03:00)
Continuity mistake: When the shootout starts in the airport, the Expendables shoot some bad guys and duck behind a service kiosk. We see Chuck Norris shoot one villain from the second floor behind and above the Expendables. Moments later, when the Expendables advance into the airport, they shoot several bad guys that are on the same level Chuck Norris should be on. Chuck Norris apparently disappeared.
