In rehearsals for Floyd Collins with Rebecca Trehearn

Rebecca Trehearn (City of Angels, Show Boat) performs "Through the Mountain" from Floyd Collins, which opens for previews at Wilton's Music Hall this week.

Trehearn plays Nellie Collins alongside Ashley Robinson (Merrily We Roll Along) in the titular role.

The musical is based on the true story of Floyd Collins, a cave explorer in '50s Kentucky who gets trapped, and his friends and family who fight to set him free.

Floyd Collins runs at Wilton's Music Hall from 28 September until 15 October, with previews from 21 September.