British actress Kelly Reilly (Eden Lake) has signed on to star as the female lead in Randall Wallace’s Heaven Is for Real, a faith-based drama about a four-year-old boy who claims to have seen heaven after having a near-death experience during emergency surgery.

The film is based on Nebraska pastor Todd Burpo and his wife Lynn Vincent’s New York Times bestseller “Heaven Is for Real: A Little Boy’s Astounding Story of His Trip to Heaven and Back.” According to the book, no one believed his young son up until he started to say things about heaven that no one would know.

I’m guessing it’s ice cream.

Reilly, along with Greg Kinnear (Little Miss Sunshine) will play the boy’s parents. Reilly is best known for her starring role in the British horror film Eden Lake and for playing Mary Watson in Warner Bros. Sherlock Holmes franchise, starring Robert Downey Jr. and Jude Law.