Channel 4’s Dispatches sent reporters into Islamic and ultra-orthodox Jewish schools.
Their documentary – Faith Schools Undercover: No Clapping In Class – will be screened tomorrow.
Dispatches visited the Olive Primary School in Blackburn, run by the Tauheedul Islam Faith, Education and Community Trust.
Ofﬁcials there have described the alleged homophobic comments as nothing more than “staff room gossip”.
Other footage is understood to include teaching assistants suggesting “music in school should be banned as non Muslim” and that ties could be turned into snakes on Judgment Day.
There is no suggestion the programme highlights teaching practices at Tauheedul and Channel 4 chiefs could not conﬁrm which Blackburn footage, if any, would be aired.
The school has been held up as a model for Muslim faith schools.
Channel 4’s website said of the 30-minute programme: “Dispatches goes undercover to question the role of faith communities in our schools.
“The programme ﬁlms undercover in a primary school where clapping and whistling are described as ‘satanic’ practices.
“Elsewhere Dispatches uncovers a network of illegal schools where more than 1,000 boys are being taught suspicion of the outside world and the only subject is religion.”
“The school has been held up as a model for Muslim faith schools.”
When Dispatches contacted the Tauheedul Trust with its allegations, bosses got in touch with the Department for Education.
They invited it to inspect any aspect of its “policies or practice”.
The DfE ordered an emergency “no notice” Ofsted inspection of Olive Primary and two Tauheedul Islam secondary schools last week.
The trust, which conﬁrmed that Dispatches had ﬁlmed undercover, said the inspections had gone “very well”.
A spokesman promised to act “if anything that emerges on the ﬁ lm is shown to undermine our progressive vision, ethos and approach”.
Tauheedul school governor Councillor Solly Khonat said: “Whatever may be said in staff room gossip is not reﬂected in what goes on in the classroom.”
Blackburn MP and former Home Secretary Jack Straw has backed the school’s teaching.
Mr Straw told a local newspaper: “From what I know, the allegations are groundless.
“I am a personal friend of the trust chairman Kam Kothia, whom I have known for 20 years. I trust him completely.
“Mufti Hamid Patel, the chief executive, is a ﬁrst-class head teacher.
“Between them they run a very good group of schools.”
Last night a spokesman for Tauheedul Education Trust said: “When we discovered Dispatches had targeted The Olive School we were shocked and disappointed.
“Our schools are open to the world and our curriculum is broad and balanced.”
A Channel 4 spokesman declined to discuss the contents of the programme ahead of transmission.