There is a very good blu-ray set, now out of print but not crazy expensive, that has five different cuts: US theatrical, international theatrical, workprint, directors and final cut (which is the actual director's cut). That's the best version of the theatrical release that you'll probably ever be able to get.

Only the final cut is available on UHD or an in-print blu-ray (and I would guess streaming as well).

> I liked the film noir voice-over.

I remember the voice over the first time I saw the movie, possibly in a cinema. I liked it, and was surprised with the general level of dislike it has received. The film was meant to be a mid-20th-century film-noir detective drama.