Oh, and I also began to wonder how big the Xenomorphs are. When we get a backseat view of them (past the front-seat people in a car and a truck), they fill up the entire windshield even though they're still a ways down the road, which makes them look like they're the size of a bus. But later there's one in the mine shaft which looks to have an eight-foot ceiling; and one even shares the front seat of Ellen's convertible with her. I'm sure it was just inattention to detail that created these discrepancies but maybe, since it's such a plot point that they CAN morph, they DO morph size-wise -- from truck-size when they want to stop a moving vehicle, to human-size when they materialize inside a car.

Just food for thought, for those with un-picky appetites!