I don't claim to be an expert on every single anime out there, but there are some rumors floating around the internet that just aren't true. This page tries to dispell some of the more "popular" ones that I know to be false.
Sailor Moon Rumors
During the Silver Millenium, Princess Uranus (Sailor Uranus' past self) had a brother who was in love with Princess Neptune (Sailor Neptune's past self). When the Silver Millenium was attacked by Beryl, Prince Uranus was killed. Prince Uranus then became one with Princess Uranus
No. There is nothing in the manga or anime to indicate Princess Uranus had a brother. Naoko Takeuchi, the creator of Sailor Moon, has denounced this rumor herself.
Sailor Chibi Moon is actually Sailor Pluto's daughter
No. Sailor Chibi Moon is the daughter of King Endymion and Neo-Queen Serenity, the future forms of Tuxedo Mask and Sailor Moon.
The Legend of Zelda Rumors
Link and Zelda are sisters
No. They are intertwined by faith because they possess the triforces of courage (Link) and wisdom (Zelda), but they are not blood relatives.
The Wind Waker is the last Zelda game
Thankfully no. ^^ Nintendo is planning to release more Zelda games, including one tentatively scheduled for release in 2005.