When Kirk (Ulrich Thomsen) and Liz (Megan Boone) are clinging to the pontoons of the crashed plane, there is a green-screened shot of the two of them in the water. This is probably a reshoot, since in the green-screened shot, Liz's hair is dry, but seconds later in a non-green-screen shot, her hair is soaking wet.
After Elizabeth and Alexander Kirk crash-landed into the Gulf of Mexico (technically, the Straits of Florida), Lizzie gets on the radio to report mayday, along with their coordinates. She states, "Mayday, mayday. Plane down off the coast of Havana. 23 degrees, 52 minutes north, 82 degrees, 49 minutes south. Mayday, mayday, mayday." Those coordinates specify two different latitudes (one above the equator, and one below), but no longitude! Luckily, she DID say they were off the coast of Havana, so the Coast Guard would be able to deduce the correct coordinates of 23' 52" north, 82' 49" WEST (not south!)
Elizabeth (Megan Boone) picks up a child's drawing signed "Masha". If she had truly drawn and signed that as a Russian child, she would have signed it in Cyrillic, not using English characters.
It was shown when the Palace was overtaken by the authorities the "local" police wearing "POLICE" on their backs, if it were Cape Breton (and not Sydney) it would be the RCMP involved with the FBI not a local police dept.
The Coast Guard officer says the boat that had been off the coast of Cuba was now at a local marina in Madeira Bay. From the north coast of Cuba, the boat would have been taken to the closest Coast Guard station, which was Key West. Little Madeira Bay is on the mainland of Florida far away from the Keys, which one would have to pass to get to Little Madeira Bay. Additionally, Miami-Dade officials are shown at the marina. Both Little Madeira Bay and the Florida Keys are in Monroe County, not Miami-Dade County.
Ressler says a Cuban fishing vessel radioed a distress call, then calls the person on the boat the pilot. Planes have pilots, boats have captains.