Firefly Complete Series

Fun fact: Han Solo had a cameo in the show...well, more like 14 cameos. In every episode of Firefly, the cast and crew managed to hide a Han Solo in Carbonite toy in one scene. For example, in the episode “Jaynestown,” the toy can be found behind the mudder’s bar. It can also be found behind Mal while he’s cleaning his weapons in “Heart of Gold” and in the engine room when Kaylee is in her hammock in “The Message.”

Fun fact: During the play in this episode, many famous space ships can be seen taking off from the Earth That Was. The Enterprise NCC-1701 from Star Trek, the Tantive IV rebel blockade runner from Star Wars and the Colonial Viper from Battlestar Galactica can all be seen carrying passengers away from the dying planet.

Fun fact: Jubal Early, the bounty hunter from this episode is named for Nathan Fillion’s ancestor who was a general in the Civil War. A lot of other character names come from sci-fi notables, such as Bester, the original mechanic of Serenity, who was named for author Alfred Bester and Brennert who was named for producer Alan Brennert.

Not a Fun fact but during an interview conducted by the Science channel back in 2012, Joss Whendon and Tim Minear discussed some of the episodes that would have made up Season Two. Here are some experts from that interview:

"fighting dogs" episode that Alan Tudyk had wanted to make.Adam Baldwin, Jayne goes off and becomes captain of his own ship, and he and Mal are rivals — until Jayne fails so dreadfully, he has to come crawling back to Mal. (This would have been the season two opener)

We learn part of Inara's huge secret: she's dying of some terminal disease, which is only vaguely hinted at in one episode. And executive producer Tim Minear explained about one episode that Joss Whedon pitched early on:

She had this magic syringe. She would take this drug. And if she were, for instance, raped, the rapist would die a horrible death. The story was that she gets kidnapped by Reavers and when Mal finally got to the ship to save her from the Reavers, he gets on the Reaver ship and all the Reavers are dead. Which would suggest a kind of really bad assault. At the end of the episode, he comes in after she's been horribly brutalized, and he comes in and he gets down on his knee, and he takes her hand. And he treats her like a lady. And that's the kind of stuff that we wanted to do. It was very dark. And this was actually the first story that Joss pitched to me when he asked me to come work on the show. He said, 'These are the kind of stories we're going to do.'

So, to sum up: Inara gets gang-raped by Reavers, who all die due to her drug use. And this finally convinces Mal to stop slut-shaming her, at least for a while.

Nathan Fillion shared another story idea:

There was a show that Joss was talking about where we get to a planet and these people are really kind to us and really sweet, it's kind of a wintry planet. And I catch them starting to steal our ship. Like, "You sons of — Wha?" And they go, "Okay look. Here's the deal. Our planet is dying. We're all going to die here unless you get us off here." But the idea is, we're so far out that if we take them back we're going to run out of air, we're going to run out of food, we're all going to die. Unless we meet up with another ship. So there's that chance: We could meet up with another ship, and everything would be okay. And I say, "Look, let's all sleep on it, and tomorrow we'll decide." And I lock myself in the bridge and I take off while y'all are sleeping. And you all wake up, and go, "What have you done?" It's too late to go back, we can't go back. And on our way back out, we never meet any ships — so we would have all died. We were all going to vote, and Captain Mal takes the decision away from everybody, so it's nobody's decision to kill all those people but his.

I love how one of the ships at 1:44:20 is the same one from the pilot episode.

And yes, I could very happily watch River beat everyone up for 90 minutes. There's something just so gorram hypnotic about the way she moves in the fights.

This was a lot of fun and I would personally like to thank each and everyone one of you that re-took this journey with me. The amazing journey that was Firefly! And if this was your first time taking the journey I hope after watching all fourteen episodes plus the movie you are now feeling what we all feel....white hot blind rage.

If you are interested the journey did kind of continue in comic book form. Joss Whendon greenlit a series called "Serenity: Leaves on the wind." Published by Darkhorse Comics.

Nice ill have to check it out, always been a firefly fan, have the series on blueray and the collectors edition of the movie.
Never read the comics yet, though