Future science fiction events that have "already happened"

The problem with many science fiction stories is that they limit themselves by assigning specific dates to major events. Once those dates come and go, those stories just don't seem as convincing anymore.

Scott Bradford lists a few examples. Among them:

• 1991 - Intelligent slave apes rise up against humans and conquer the world. (Conquest of the Planet of the Apes)
  
  
• 1993 - Khan Noonien Singh and other genetic supermen rise to power and control over 40 countries between 1993 and 1996. (Star Trek)
  
  
• 1997/2004 - The Skynet computer network becomes self-aware and turns on the human population. The original date of 1997 changes because of what happens in T2, but the event does eventually occur in T3. (The Terminator)
  
  
• 2010 - The Soviet Union still exists, and a joint Soviet-U.S. mission is launched to find out what happened to the spaceship Discovery in 2001. Jupiter is ignited and becomes a star, and life is created on Europa. (2010: The Year We Make Contact)

Remember that fateful day in 1951 when the earth stood still? I'm sure we could come up with a virtually endless list of similar examples. Can you think of any other movies that include "past" future events?