Is the Mandela Effect real?
The theory is that large groups of people remember same things incorrectly due to a strange switch in the lineup of the universe.
Fruit Loops is actually spelled Froot Loops.
Darth Vader never said "Luke, I am your father." He actually said, "No, I am your father."
Apollo 13 never said, "Houston, we have a problem." The quote is actually, "Houston, we've had a problem."
Your Forrest Gump quote is wrong. You spell Berenstain Bears wrong. You remember the deaths of people who were still alive.
Yep, it's odd. I'm not sure I believe it, though. Seems like a stretch. It would make more sense that people have simply been sharing an incorrect quote for such a long time that it has become the real thing.
Check out this video of the Top 15 examples of the Mandela Effect.