Audio problem: When Skinny Pete warns Charlie over the phone, he says "mother freaking", which is a clear dub over. (01:15:30)
Audio problem: When Mashkov's men grab Steve, you can hear him say "Come on, Charlie", but his lips aren't moving at all. (01:39:35)
Answer: The Mini Cooper for the movie was also made as an electric car for the chase scenes in the tunnel because gas-powered cars were not allowed to be used in the tunnels. I heard that from the director's cut.