Katherine Waterston and Michael Fassbender appeared on the appropriately green carpet for the London premiere of Alien: Covenant.

KATHERINE WATERSTON & MICHAEL FASSBENDER AT ALIEN: COVENANT PREMIERE

The co-stars of the sixth installment of the Ridley Scott franchise greeted each other with a peck on the cheek, he in a dashing suit, and her in a semi-sheer black dress.

“I’m in awe of his talent,” Waterston has said about her co-star in the past. “It’s difficult to remain in awe of someone when you’re working with them, because you need to get through the day and not just sit around drooling! But there are times with him when I look at him and he’s doing something so amazing, I forget myself. At one point in Alien, we’re running and he did the most amazing robot run, I was just staring at him!”

In fact, Waterston said one of her least favorite parts of filming was all the running. “Paul Thomas Anderson kept sending me e-mails going ‘the girl in the new Star Wars movie [Daisy Ridley] is running really well – don’t screw this up,'” Waterston recalled, laughing. “He was haunting me so I was really paranoid about it. I feel like I look like a fraggle. It’s scary to be chased especially when you’re in a space suit that has magnets sticking you to the floor.”

Director Scott was also present on the green carpet, and admitted he enjoys comedy almost as much as horror. “I like making people laugh, but scaring people when it really works is fun,” he said. “People here will get a very stressful evening and a sleepless night.”

And speaking about why he chose Waterston for the lead role, he said, “She’s very tall, very smart, very beautiful, and a great actress. What else could you want?”

Alien: Covenant hits theaters May 19. See the trailer below.