Sorry for my part in taking the thread further off topic. I'm still learning how things work here, so I don't know if splitting threads is normal here or not, but if a Moderator wanted to split the posts into two threads, I think the split threads could form two coherent lines of conversation:
1) Which episodes of Star Trek: The Original Series are most like the Twilight Zone? Around this, there was also a bit of relevant discussion about The Outer Limits as well.
2) A side conversation beginning with post #5 and continued in its replies (#9, 15, 17-20) about non-fans making films. This is where the TWOK and Superman Returns discussions come in.
On topic, I'm no expert on The Twilight Zone, but I would agree that Spectre of the Gun is an episode of Star Trek: The Original Series that has a Twilight Zone-esque feeling to it. Maybe The Return of the Archons, too.