'Bad' films are not arbitrarily bad. Many are bad simply because they are poorly told stories, have shallow characters or lack confidence in their film's premise.
Many of the films on this list have the promise of being great, compelling stories - but somewhere along the line, the filmmakers made storytelling decisions that crippled these stories. And some of the movies listed here are simply flat out stupid.
But whatever the reason, these 25 films found themselves on the F-list of 2013 movies.