Princess Diana documentary to include interviews with her sons

May 2 (UPI) -- A documentary celebrating the life and work of Diana, princess of Wales -- who died in a Paris car crash 20 years ago this summer -- is to air on ITV in Britain and HBO in the United States.

Made by Oxford Film and Television, producers of ITV's Our Queen at 90, the film will feature interviews with Diana's sons, Princes William and Harry.

"This new ITV film will offer viewers a fresh and revealing insight into Princess Diana through the personal and intimate reflections of her two sons and of her friends and family, many of whom have never spoken before, to bring together a definitive portrait of a unique person who touched the lives of millions," Jo Clinton-Davis, ITV's controller of factual programs, said in a statement Tuesday.

"This film will show Princess Diana in a way she has never been seen before, through the eyes of the two people who knew her best," added Nick Kent, an executive producer at Oxford Film and Television.