Diana: The Musical Has to Be Seen To Be Believed.

This viewer rarely watches something that he would class as inexplicably terrible and simultaneously such a bizarre off-the-wall creation and that it has to be seen to be believed. The best recent examples in film terms include Colin Trevorrow’s astoundingly misjudged The Book of Henry. There’s also David Frankel’s unbelievably ill-conceived Collateral Beauty. Housed within