Once I got lost for 10 hours on an island and was panicky- how one man survived 4 years is incomprehensible to me. One know one man who could do it- my friend Mark.... he could catch food and entertain himself like the hero of the movie did.... all is all this is a good film despite the ending-- if he had been my boyfriend I would have waited.... I enjoyed this look at survival under the harshest of circumstances... I intend to watch it another time to catch things I missed the first time.