Found this at the TCM site when searching for the full 2026 lineup (the rest of July, not yet released).

The original incarnation played on four Fridays in June 2015. Here are the films in order of presentation:

June 5 (2015)
M (1931), La Bete Humaine (1938), The Letter (1940), Stranger on the Third Floor (1940), High Sierra (1941), The Maltese Falcon (1941), Journey into Fear (1942), Johnny Eager (1942), Nora Prentiss (1947), Woman on the Run (1950), Dark Passage (1947), Born to Kill (!947), L.A. Confidential (1997)

June 12
The Glass Key (1942), Laura (1944), Ministry of Fear (1944), Murder, My Sweet (1944), Danger Signal (1945), Detour (1945), Mildred Pierce (1945), Deadline at Dawn (1946), Johnny Angel (1946), The Gangster (1947), Gun Crazy (1950), Tomorrow is Another Day (1951), Nightmare Alley (1947), Night Moves (1975)

June 19
Cornered (1945), Crack-Up (1946), Gilda (1946), The Big Sleep (1946), The Killers (1946), Nobody Lives Forever (1946), Nocturne (1946), Crossfire (1947), Hollow Triumph (1948), Mystery Street (1950), Border Incident (1949), The People Against O'Hara (1951), Thief (1981)

June 26
The Postman Always Rings Twice (1946), They Won't Believe Me (1947), The Woman on the Beach (1947), Lady in the Lake (!947), Out of the Past (1947), Possessed (1947), Act of Violence (1948), The Set-up (1949), The Mask of Dimitrios (1944), Berlin Express (1948), The Stranger (1946), The Third Man (1949), Blue Velvet (1986)

Some interesting omissions with respect to what we know about Eddie's 2026 list. Missing in 2015 are Double Indemnity, Scarlet Street, Raw Deal, Moonrise, Force of Evil, Criss-Cross, and Thieves' Highway.

There are 49 classic noirs (just three of them foreign) that were screened in the original Summer of Darkness series. Here's a challenge for any and all who are so inclined--list the 49 noirs (from all over the world) that you would select for a full-fledged old-school TCM-style festival. We are omitting neo-noir from this list, though there were four chosen as tokens in 2015 (and more than that in 2026).

OK--Bob, Owen, Dan, Carl, Wisconsin Mark...and any others able to access the board...let's see what you think would make for a memorable series. Give us a mix of classics and guilty pleasures, with up to a third of the list being from outside Hollywood.