I have updated the spreadsheet and list again. Thanks for all the input, gromit and Roland! It's a great help.
I decided to case by case on films that are finished by other directors. Based on how much a movie can still be seen as the deceased directors work. A director doesn't have to be fully involved from the first to last bit to consider it their last movie. But they have to been involved enough in the shooting and production that it is still their work.
I most cases this means when a director still is credited as the director on IMDb it is eligible, if not it is not. But there are exceptions to this rule. Films completed years later posthumously, f.e. Welles' The Other Side of the Wind, aren't eligible. (I hope this makes sense and you all get what I mean.)
For example:
Frank Borzage: I went with "The Big Fisherman" instead of "Antinea, l'amante della città sepolta (1961)" since "Its first director, Frank Borzage, quit the movie after two days of work without shooting any footage".
Claude Berri - Went with "Ensemble, c'est tout" cause Berri died after four days of filming for "
Tresor" and François Dupeyron finished it.
Jacques Feyder- Macadam
https://www.imdb.com/title/tt0038711, because "Jacques Feyder is credited as artistic director ("direction artistique"). Although Feyder was ill at the time, according to Françoise Rosay (his wife) he was asked to supervise filming because various members of the crew had no confidence in the young and inexperienced director, Marcel Blistène. Relations on the set between Blistène and Feyder were hostile, and once filming was finished it was Feyder who oversaw the editing (wiki)"
Crane Wilbur: I went with
House of Women. Cause "Walter Doniger (The credited director) was fired ten days into filming and replaced by Crane Wilbur. Wilbur was denied a sole directing credit and turned down a co-directing credit." To me that makes this it still more Crane's than Doninger film. And his last film instead of the
=https://www.imdb.com/title/tt0052602/]Bat, which is Wilbur's last credited movie.
Mark Robson:
Avalanche Express: While Robson died in post-production, with still some days of shooting left. I think this still can be considered Robson's movie, since he shot most of it. (source wiki and
https://catalog.afi.com/Catalog/moviedetails/56194)
Also for
Ishiro Honda I went with Terror of Mechagodzilla. The films he did with Kurosawa after his retirement are considered Kurosawa's films.
: https://www.imdb.com/list/ls560861521/
