Cake is theming four carriages in the train, which will run between London Euston and Birmingham New Street to promote the launch of Sky Movies channels on the Sky Go service.
Decoration will be inspired by scenes from movies on Sky Go, from a snowy wood from Narnia to Mary Poppins' Victorian London and 1940s décor from It’s a Wonderful Life and The Kings Speech.
An iPad or laptop will be given to each traveler to watch movies on Sky Go, which offers on-demand content.
Actress Tamsin Egerton appeared as a snow queen to launch the Narnia carriage yesterday, while the other three have yet to be created.
Tickets will be free and can be applied for online.
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