In a recent interview the directors of Aliens vs. Predator: Requiem said that shooting conditions in Vancouver were pretty harsh, as the stars spent most of the 55 day shoot soaking wet and cold.

“We warned them that this was going to be grueling and they may not like us after it’s all over,” Greg Strause (who co-directed the film with his brother, Colin) said. “The most challenging thing about the filming was the 18-hour days, seven days a week, and it was 35 to 40 degrees at night. It was cold! Then, toward the end of the shoot, it started to snow,”

“We didn’t want there to be any daylight shots of the alien or the predator, so this all took place in the dark and in the rain,” “We had three pairs of long johns on, but the suits that the [creatures] wore absorbed a lot of water, and we had to be careful, because it was grueling for them in there. But everyone survived.” added Colin Strause.

Aliens vs. Predator: Requiem hits theaters on Christmas Day.