Alien Appendix 2: The Virtual Workprint

Not necessarily the ideal way to see Alien, as there's variable A/V quality, scenes interpolated in that were clearly outtakes, and out-and-out bits with Ridley Scott shouting direction at the actors. But if you're someone who has seen this, the greatest science-fiction movie ever made innumerable times and wants to experience in a maximalist way, this is how you do it. Beyond mere curiousity, the scenes between the two female crew members give both characters much needed character growth, and the extra footage of the Big Chap himself, while not always effective, is appreciated as an insight into how future films in the franchise would showcase the titular beastie. And for novice editors/directors/writers, you can watch the "roll call" scene shortly after the crew awakens and decide for yourself whether it's effective or not in terms of introducing your characters.

Lots of fun, but definitely a supplement to the official cut, not a replacement.