[neverending]

No- London After Midnight is the most infamous lost movie. There have been several hoaxes over the years claiming to have found it, but they've all been exposed.

There is no such thing as a "director's cut" of Freaks. There was an original cut, that didn't test well, so it was shortened for general release. The footage has been lost for 80 years. You're not going to find it by snooping around on the internet.

Miracles can happen though- as seen by the recent uncovering of additional footage for Metropolis.