Trivia: In the scene where Ripley discovers the room full of failed clones, she stumbles upon Ripley 7, a hideous, malformed but still living clone. The entire scene after she discovers her ill-fated 'sister' is ripped directly from, and is an homage to, one of the most famous deleted scenes from the original Alien. Ripley finds a long dead Brett and barely living Dallas cocooned in the bowels of the Nostromo, and Dallas asks her in a pathetic, painful voice to kill him. She obliges by using her flamethrower. The scene in Resurrection is almost 100% identical, everything from the design of the flamethrower to the emotional reaction and facial expressions she had in the cut Alien scene.
Trivia: Joss Whedon's original script followed a cloned Newt (from "Aliens") instead of a cloned Ripley. Newt was going to have much more overt gifts and abilities thanks to the cloning process, and would have single-handedly fought off the new alien threat. Many who read the script compared the story and Clone-Newt character to Whedon's TV show "Buffy the Vampire Slayer" - just with xenomorphs and a future setting instead of vampires in the modern day. Eventually, it was decided to swap out Newt for Ripley, given she was the star of the series.
Trivia: On the original design of the newborn, director Jean-Pierre Jeunet designed the creature with both visible male and female genitalia. These were actually present on the creature model throughout filming, but when the studio saw the finished film with the visible genitals, they ordered Jeunet to digitally remove them because they would gross out the audience.