Along with Caltech physicist Mlodinow (The Drunkard's Walk), University of Cambridge cosmologist Hawking (A Brief History of Time) deftly mixes cutting-edge physics to answer three key questions-- Why is there something rather than nothing? Why do we exist? Why this particular set of laws and not some other?-- and explains that scientists are approaching what is called "M-theory," a collection of overlapping theories (including string theory) that...

Beginning with simple and clear explanations of major concepts of physics, including gravity, electromagnetism, and relativity, this DVD illuminates one of the most revolutionary theories in physics today. The string theory, or superstring theory, proposes that the fundamental ingredients of nature are inconceivably tiny strands of energy, whose different modes of vibration underlie everything that happens in the Universe.

Based on the book by physicist and author Brian Greene, his film takes us to the frontiers of physics to see how scientists are piecing together the most complete picture yet of space, time, and the universe. With each step, audiences will discover that just beneath the surface of our everyday experience lies a world we'd hardly recognize, a startling world far stranger and more wondrous than anyone expected.