Youngsters Iona and Rowen Hooper had a day they will never forget when they visited the Children’s BBC studios.

The sisters, aged 11 and six, travelled from their home in Calne to London with their dad on Tuesday last week, where they spent the day being shown around the recording studios before learning how to produce a short film.

Mum Marie Hooper said: “They had a really brilliant day and it is one they will never forget.

“They were treated really well and were given proper direction. They learned how to count into a scene and they could use props, make-up and special effects. They had the run of the place.”

The girls, who are home schooled, entered a competition to join the group of 64 back in June, and had forgotten about it when they were told they both had a place.

Mrs Hooper said: “Because we give them a home-based education we get sent a lot of stuff from CBBC and we thought we would try applying for this.

“We forgot all about it until we had a phonecall asking how we felt about both of them going.

“They only expected to be shown around the building and when they saw the Prank Patrol van outside I think they would have gone home happy but they got to do so much.”

The girls were put into groups of eight and were asked to come up with a plot for a two minute movie, which they then starred in.

“They had their own office,” Mrs Hooper said. “And my husband said the production was amazing. The experience they gave the children was just fantastic.”

Iona, 11, was in an older group, which made a film based on prejudice, while Rowen played a cat in a movie about a mad scientist.

“The icing on the cake was at the end when they were approached and asked for consent for them to audition for other pieces,” Mrs Hooper said.

“They have never acted before so I was so proud of them. It seems like the BBC just went for it and gave them a day they will remember forever.”