£180 million worth of train carriages built at Derby-based Bombardier will be on show for the Transport Minister, Patrick McLoughlin, today.
The 130 carriages are being tested in London and will be rolled out across the city in December.
More top news
The summer holiday season is a peak time for FGM activity and the film urges people to be on the look-out for signs.
Remaining dry overnight with lengthy clear periods.
Leah Washington, 17, had to have her left leg amputated after being trapped for hours on The Smiler rollercoaster at the theme park.