Dream Horse: Toni Collette and Damian Lewis star in film about Dream Alliance

Twenty years ago Jan Vokes came up with the idea of raising a racehorse on her allotment.

Dream Alliance went on to win the Welsh Grand National - and the story was perfect for Hollywood.

In the film adaptation Dream Horse, she is played by Australian actress Toni Collette.

"My father was a coal miner, and I was born and bred in a little village just up the road so to imagine that my life was going to be played out by a Hollywood A-listed actor, it’s just unbelievable," she said.