Movies that have been remade more than once?
King Kong
Night of the Living Dead
Invasion of the Body Snatchers
Carrie
The Great Gatsby
The Mummy
Freaky Friday
Annie
Any others?
EDIT: I know that multiple films based on the same book technically wouldn't count since they are just adaptions of the same source material and are otherwise unrelated. Others have correctly pointed this out already and I've actually brought that up on these boards in the past. But let's go ahead and include those anyway just to make it more interesting and allow for longer discussion. Otherwise, this would likely be a rather short list.