http://en.wikipedia.org/wiki/Back_to_the_Future_Part_II
After the Florida Marlins beat the Cleveland Indians in the 1997 World Series, a rumor began to circulate that the movie predicted the Series' result; however, this was not the case. No mention is made of Florida winning the World Series at all, and the only mention of a Florida-based team is in a news broadcast which announces that the National League Chicago Cubs beat an American League "Miami" team with an alligator logo (not a marlin) in the 2015 World Series (a joke at the Cubs' expense; they had not, and still have not, as of 2007, won the World Series since 1908).

The Cubs' opponent was referred to only as "Miami" because there was no Major League Baseball team in Florida at the time of the movie's filming. Instead, the movie was predicting that a team (most likely in the American League) would be in place there by 2015. The prediction was made because of persistent talk of the relocation or expansion of a team to Florida at the time (which was also part of the plot for the 1989 film Major League, as well as the last three seasons of the sitcom Coach). Since then, two expansion teams have been placed in Florida: the Marlins (1993) and the American League Tampa Bay Devil Rays (1998).

The rumors started again in 2003 when the Marlins defeated the Cubs in the NLCS. But again this ignores the following facts:

* The movie was predicting the World Series, not the NLCS.
* The scene takes place in 2015, not 2003.
* The movie says the Cubs beat Miami
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