In an interview, one of the characters confirms that the Sun will go supernova and says this means it will expand and destroy the solar system. This is actually a closer description of what will happen when the Sun actually becomes a red giant. She should have said "explode" rather than "expand".
90 minutes in there's a television report playing on TV in the kitchen. The report clearly tells us that the death row convict is in a maximum security prison in Pretoria, which is in South Africa, not Australia.
Not only do the "scientists" repeatedly misread the formulas, but the most famous one makes a 22-orders-of-magnitude error in a calculation. Who ever heard of a scientist who wouldn't notice that and fix it immediately? That's like expecting an answer in the angstroms range and getting an answer in the light-years range!
During the part where solar flares are blocking cellphone reception, the government decides to keep cellphone reception available by having a satellite providing it to one location. When the Earth spins around as it does every day, the cellphone reception would be blocked again by the solar flares.
During one scene, a character describes shifting satellites in to 'Geo-synchronous Orbit behind the Earth' with an accompanying graphic on a computer screen - in simple terms, Geo-Synchronous means that the satellite rotates around the earth at a speed that keeps it locked over one location on the Earth's surface, the opposite to what they say they're doing.
Australian Police use large and medium sized family cars. For the most part they use Holden, Ford and Toyota products produced in Australia. Imported Police vehicles consist of mainly dual cab Utes such as Hilux or Holden Rodeo/Colorado