You could say that biologist finally won...
*sunglasses*
... his Darwin Award.
Yup. :lol
I just watched the 2003 dc of Alien. I agree with the Half in the Bag review. Alien actually had some of the problems that people are having with Prometheus, but it was a much simpler story and the characters behaved more like real people.
But you could go through and find issues with it. To mimic the HitB Prometheus spoilers section:
I share some of these questions, but some of them do have answers.
Why did a massive ship carrying ore only have 7 crew members?
They were basically a tug boat, not the full mining crew. They were just taking a shipment home.
Why would a company clearly set up for profit risk a full cargo ship on this mission?
I've always had issues with this as well. That said, I think they heard the beacon coming from that region and decided to retrieve it asap. But yeah, wouldn't it be better to send a crew with that specific purpose? In the film the company is said to have a weapons division. Send those guys.
Why did the first guy stick his head in the egg pod?
He didn't stick his head in, he looked inside from a foot or so above the egg. The contents of eggs don't typically leap out at people.
Where did the mass come from when the alien morphed from chest burster to full grown? Where did the mass for the stuff the captain was encapsulated in come from?
From a scene cut from the script, alas. It broke into the food storage. In the film, it's something that's always bugged me as well. When I was younger I imagined the tubes on its back sucking in air and converting what it collects into biomass, somehow. Dunno.
Why would a ship like that have a self destruct procedure that could be set in motion by a single person in a couple of minutes?
To be fair, it also had a fail safe that would allow it to be turned off if someone tried to blow the ship up.
Why would Ripley wander around the ship looking for the cat by herself after most of the crew had been killed?
Because she liked the cat more than people. She's the only person in the film shown petting the cat and holding him, and had a bad relationship with everyone else on the crew sans Dallas. But yeah, film cliche.
Why didn't the alien kill the cat?
It wasn't a threat, and wasn't a suitable host.
How did the alien know to go into the escape pod?
It was fleeing the loud noises and steam jets in the rest of the ship - the escape pod was the only quiet place it could find.