Final answer:
While 'Interstellar' employs some scientifically accurate concepts like relativistic time dilation, it inaccurately depicts the event horizon of a black hole, the stability and existence of wormholes, and the ability for humans to survive near a supermassive black hole without facing extreme physical consequences.
Step-by-step explanation:
The movie Interstellar is known for consulting real-world physics, particularly the work of astrophysicist Kip Thorne, to portray some scientifically plausible scenarios about black holes and relativistic time dilation. However, there are several science fiction elements added for dramatic effect that aren't accurate in a strictly scientific sense. Here are three such inaccuracies:
The portrayal of a black hole's event horizon as a somewhat tranquil area which humans can approach and even cross without immediate destruction. In reality, the gravitational forces near a black hole, known as spaghettification, would likely tear any spacecraft and its passengers apart.
The depiction of the wormhole near Saturn as being stable enough for a spacecraft to pass through it. Wormholes, in theoretical physics, require exotic matter to stay open and are not proven to exist. Their stability is highly speculative and would likely not be suitable for travel.
Characters’ survival and functionality in the vicinity of Gargantua, a supermassive black hole, without facing any significant spacial distortions or suffering from intense radiation that typically surrounds such black holes.
While the film gets some aspects of the science right, such as the time dilation effects caused by gravity, the needs of storytelling and visual spectacle take precedence over strict adherence to current scientific understanding in several key scenes.