Guess which Hollywood superstar dropped into Huddersfield ?
She stars alongside Liam Neeson in the film A Monster Calls, which is based on the bestselling book by Patrick Ness.
Sigourney, 65 on Wednesday, was joined on location at Colne Valley High School by scores of young students from the school, who were delighted and excited to be roped in as extras.
Sigourney, of course, is probably best known for her role as Ellen Ripley in the four Aliens movies. She has also starred in Ghostbusters, Gorillas In The Mist and Avatar.
Security was tight for the hours of filming on Sunday but passers-by were keen to see which of the stars arrived.
The name of the school was changed to the Thomas F Aldridge Comprehensive School for the film, which is not due for release until 2016.
Other scenes were shot in a number of locations in Marsden, including The Cuckoo’s Nest community shop.
The film shoot, which is among the most high-profile to ever be done in the area, will be the beginning of the end of much hard work for director Juan Antonio Bayona and his team, who were also responsible for The Impossible and The Orphanage.
The movie, due for release in 2016, depicts the tale of Conor, a boy played by youngster Lewis MacDougall, who is visited by a story-telling monster while struggling to come to terms with his mother’s terminal cancer.
Neeson stars as the monster and Weaver as the boy’s grandma.
Linthwaite teacher Darren Fisher managed to capture some of the action.
He said: “We had seen the news that they were filming and went up for a walk to the school.
“There was a huge production set there, with a lot of people and equipment. I managed to get some pictures of Sigourney Weaver and of the young lad who is starring in the film, although I didn’t know who he was at the time.
“It is great news for Huddersfield that the town has been picked as a location for a film.
“I’m not a massive film fan but I will probably go along and watch this one when it comes out”.
But Mr Fisher has had other dealings with film stars: he managed to get letters from about 100 famous people, including actros, for a project for his class of schoolchildren.