UK made children's films?

[rushingaroundmum]

My children (7 & 5) are massive fans of all of the Nativity! films, mostly because they 'have real people in' and are not cartoons, and because they are set in the UK so the actors don't have strong US accents (this is their opinion not mine, I am not accent-biased!). Obviously we can't watch Christmas films all the time, plus it would be nice to have some variety.
Can anyone suggest some other films that would meet the same criteria? All ideas gratefully received.

Horrid Henry the movie was one my two liked

Nanny McPhee.

Lots of old films have British children - Mary Poppins, Chitty Chitty Bang Bang, Bednobs and Broomsticks, The railway Children. Sort of English in the Sound of Music. The voices in Howl's Moving Castle are a mixture of Enflish and American. Disney's Alice in Wonderland and Peter Pan. Wallace and Gromit.

Thunderpants

"An 11-year-old boy's amazing ability to break wind leads him first to fame and then to death row, before it helps him to fulfill his ambition of becoming an astronaut." - from imdb.com

Has a young Ron Weasley in it and is the best film about farts I have ever seen

101 Dalmatians? There is an American man in it but most the actors are English.

Thank you everyone!

The Railway Children
Swallows and Amazons
The Bicycle Thieves
The Parent Trap (original, Hayley Mills)
Pollyanna
The Three Lives is Thomasina
The Water Babies
One of Our Dinosaurs is missing
Chitty Chitty Bang Bang
Harry Potter (but maybe just the first one as they're quite young)