The driver backs the truck into a metal awning in front of the building, even going so far as to shake the awning, but in the next scene the truck is several feet away from it.
When Eilleen is in the shower, the rings on her left hand appear and disappear between scenes.
When Milt is fighting off the biker pirate, his hat falls off his head in a close-up but is back on his head in the next shot.
The nude dancing woman at the bar where Cooper and his gang attack the main characters can be seen wearing underwear in one cut.
At the 1 hour 19 mark, during the fight against the zombies, whenever the action shows the scenes filmed on the beach, all the zombies that previously were blue have suddenly forgotten to put on the blue body paint, most noticeably the one in the blue kimono.
The fire on board the ship freeze frames several times.
After the guy is stabbed with a sword, he very clearly can be seen putting fake blood on his face.
Most of the interior shots of the ship are obviously in a building on land. The furniture, bookshelves, lamps, etc are not secured, and the doors are standard types for houses.
Piranhas are shown attacking people thrown into the sea. Piranha are a freshwater fish that inhabit South American rivers and could not survive long in saltwater. They also do not usually attack in the manner portrayed in movies - a myth that was created after a "feeding frenzy" staged for Theodore Roosevelt on a visit to Brazil in 1913
Boom mic visible as bartender breaks ice with his head.