Our big, blue marble is as fragile as it is beautiful. That's the message in this IMAX offering that focuses on Earth from a vantage point 200 miles above, where few have had the opportunity to observe the planet. Highlights include a computer-animated segment about the San Andreas Fault, a time-lapse thunderstorm sequence and the breathtaking opening section, which shows Earth's horizon moving slowly from the bottom of the screen to the top.