fictionalising BrE
fictionalizing AmE

Leaving off with the 'imaginative fury' might make it possible to 'unlock meanings that fictionalising has obscured, distended, or even inverted'.

The books Zen and the Art of Motorcycle Maintenance by Robert M. Pirsig and The Tao of Muhammad Ali by Davis Miller open with statements admitting to some fictionalising of events but state they are true 'in essence.'

The very title of the book is a gauntlet thrown down to the reader, an ironic reference to the necessary fictionalizing of autobiography.

"Fictionalizing Howard" (Gary Romeo)