Factual error: When Reed and Sue are testing the Human Torch's powers, they claim that a temperature as high as the Human Torch's (5000 K to 6000 K) will "ignite the atmosphere and destroy all life". This is incorrect. Many experiments in the lab and on the field have produced temperatures several orders of magnitude larger than the temperature of the Human Torch on a similar scale. Nuclear explosions can generate temperatures in excess of 8000000 K, and temperatures produced by the largest X-ray generator (the Z machine) have been as high as 3700000000 K. Such tests have not ignited the atmosphere.

Continuity mistake: When Johnny is walking out of the dirt bike stadium, he has his arms around two women's shoulders. The shot changes, now the two women are holding on to his arms. The shot changes again, and now his arms are free. It happens too fast for him to just let go of the women. (01:00:35)
Ben Grimm: No more cracks about how I look.
Johnny Storm: Hey, call me Mr. Sensitivity. Everybody out of the way! Wide load coming through! He's huge!
Trivia: When Michael Chiklis' wife, Michelle (who suffers from claustrophobia), first saw him in his The Thing outfit, she suffered a panic attack and had to be escorted off the set.
Question: During the final fight Mr. Fantastic makes a remark about hot metal cooling fast, what is this about?





Answer: Ever see Aliens 3? When a metal gets hot, it expands. When it suddenly cools, it doesn't contract evenly and often shatters or pops. It would seem he was made of a tougher metal than we thought, as he's still in one piece, but immobilised (for the moment...).
James King III