Goofs

When the Sub crew first arrive in Melbourne, there's a building that has a hole in it and is burning inside, but later on in the movie at the train station you can see the same building in the background without a scratch on it.

When Moira is driving the Ferrari, the top is seen on and off in alternating scenes.

When downloading the satellite data the sailor says there is a megabyte of video attached but the screen shows a 1.02 gigabyte MPEG2 video file downloading.

When they walk around in protective suits in Anchorage, their only concern is their limited air supply. Suits do not protect from gamma rays; they only stop getting yourself contaminated with radiation-emitting particles. Thus the time being exposed to radiation should be more critical than air supply.

Executive Officer Neil Hirsch is a lieutenant commander. When he wore his dress uniform he had "scrambled eggs" on his cap's brim. Lieutenant commanders have plain brims.

When the submarine is first greeted at Melbourne, the Royal Australian Navy (RAN) Guards at the Gangway greet the Captain by pulling back the bolts on their assault rifles. This dangerous gesture is highly improbable.

Dwight Towers holds the rank of a U.S. Navy commander (three stripes on the shoulder boards) but wears the uniform of a U.S. Navy captain (four stripes with eagles on the collars).

When the sub departs on its mission north, it is depicted remaining surfaced until radiation levels start rising. In real life, they would submerge just as soon as they were clear of the Australian Coast '--- a surfaced nuclear sub is barely seaworthy and can't go nearly as fast as it can submerged (and the story did emphasize time was of the essence). Also, submerging and surfacing are not nearly as dramatic as this movie depicts. Back in the early to middle 20th century, submarines like the German U-Boats were shaped like surface ships, and worked more efficiently on the surface, but that changed around the time the book was written --- since then, submarines move most efficiently underwater.

When the submarine is first greeted in Melbourne, Royal Australian Navy (RAN) Admiral Cunningham salutes Commander Towers with his palm facing downwards. This is correct for the RAN (and all Commonwealth navies), which does not employ the outward facing palm salute used by the army and air force, as per naval tradition.

One of the U.S. Navy sailors has an Australian accent. This is nothing unusual as many foreign born people do serve, and have, served in the US military from the Revolutionary War forward.

When Commander Towers is retrieving the DVD from the laptop, there is a closeup on the dead reporter. However, in the scene her eyelid is twitching, indicating she is not dead.

In the final scenes where Commander Towers walks around the hill at Point Nepean (Port Phillip heads) to join Moira Davidson as some of the last few people alive in Australia, in the background is a fully-laden container ship about to enter Melbourne's Port Phillip Bay.

The Route 3 W-class Melbourne tram that Moira and Dwight use to travel to collect the Ferrari is travelling on the wrong side of the road. The tram stop is clearly visible beside the tram as well as the tram tracks for the correct side. Also, if it's destination is Caulfield Railway Station (as on the Indicator Board), it is also travelling the wrong way as the tram is heading north up Queen St Melbourne, and Caulfield is south.

When Cmdr Towers and his officer are walking along the street in Anchorage, they stop outside a red brick house with white timber veranda and window frames. That style of house does not exist in Alaska but is the Federation style of housing that is very common in Melbourne, Australia.

The "suicide pack" found in the anchorage TV station looks exactly like the ones being distributed in Australia when the sub left, right down to the package color and contents.

The ribbons worn on Captain Towers' service uniform are a mixture of decorations from all branches of service and the National Guard. In addition, the awards are displayed completely out of precedence.

When Bobbie locks himself into the forward torpedo room, the chief calls for a "mechanic." Submarines do not have mechanics, he would have called for an "engineer."

One of the submarine officers is wearing his belt on backwards. For men in the U.S. Navy, the belt buckle's end should face to the left, not the right.

Captain Towers is wearing his Command-at-Sea pin below his pocket flap, when it should be above it.

Petty Officer Swain is shown wearing a khaki belt on his coverall uniform. Khaki belts in the U.S. Navy are only worn by chief petty officers, warrant officers, and commissioned officers. Enlisted sailors wear black belts in real life.