Dr Edie Friedman, Jcore’s executive director, said: “The situation in Calais is getting worse by the day.
“Although the Calais camp has gone, the refugees have not.
"According to charities there, some 700-800 refugees, of whom 200 are unaccompanied children, are still in the area, mostly sleeping rough without shelter.
Dr Friedman said the children were “easy prey for smugglers and traffickers” and claimed they were “regularly assaulted by the French police”.
The film is due to be shown at Edgware Masorti Synagogue on January 9.
Meanwhile the first unaccompanied Syrian child refugee from Greece, who qualifies for sanctuary in Britain under the Dubs amendment, has arrived in the UK.
Hammersmith and Fulham council in west London welcomed the boy on Friday, a year after the government promised to settle 3,000 child refugees in the UK.
Under the Dubs amendment, introduced by Jewish peer Lord Alfred Dubs, the government was expected to provide refuge for 3,000 vulnerable Syrian children.
However, earlier this year, Lord Dubs, who arrived in Britain on the Kindertransport, said the government seemed to be intent on “closing down” the scheme.
A spokesman for the council, which is already accommodating and supporting 13 Dubs children from France, said: “We worked closely with Safe Passage, who alerted us to this case. This child has a legal right to come to Britain and deserves so much more.”