letterboxd.com/cinemonster/list/a-fun-challenge-with-a-silly-name-mannvanuary-1/

Anyway, nothing crazy. 24 films and 2 bonus. What is listed below are the minimums. Use the 'categories' to get to 24, but hit those minimums. Use tag 'mannvanuary3'

1 Anthony Mann Film
Winchester '73

1 Melvin or Mario Film
Sweet Sweetback's Baadasssss Song

1 Black Western
The Harder They Fall

5 decades (western)
1940s - My Darling Clementine
1950s - Winchester '73
1960s - The Great Silence
2000s - Open Range
2020s - The Harder They Fall

8 films from Black directors
Sweet Sweetback's Baadasssss Song
Cotton Comes to Harlem
Ceddo
Boyz n the Hood
Devil in a Blue Dress
The Watermelon Woman
Us
The Harder They Fall

1 Italian Western
A Bullet for the General

4 westerns from the following: Corbucci, Sturges, Hawks, Delmer Daves or Boetticher.
The Great Silence
The Magnificent Seven
Rio Bravo
Ride Lonesome

7 decades (noir)
1930s - The Public Enemy
1940s - Scarlet Street
1950s - On Dangerous Ground
1960s - Army of Shadows
1970s - Cotton Comes to Harlem
1980s - At Close Range
1990s - Torment

4 noir films from: Ray, Ulmer, Lang, De Toth, Florey, Melville, Foley.
On Dangerous Ground
Scarlet Street
Army of Shadows
At Close Range

BONUS - 1 Spike Lee that you haven't seen and The Final Comedown
Summer of Sam