"The definition of walking around the world, according to the Guinness Book of World Records, is that you have to walk at least 14,000 miles, and you need to start and finish in the same place and walk across at least four continents, and they say that when you get to the end of a continent you can fly," Polly Letofsky explains in the film her brother P.J. made to document her journey around the world on foot -- the first completed by a woman. The numbers speak volumes about the lengths Letofsky went -- 14,124 miles across 22 countries in North America, Australia, Asia and Europe. Walking at an average of 15 miles per day for 1,825 consecutive days, or five years, she fundraised more than $250,000 for 13 breast cancer organizations and burned through 29 pairs of shoes.
