In general, using any film stock tends to add lots of saturation, contrast, vignette, and grain. For a less-intense result, try a weighted solution. While certain popular film stocks may produce expected results, not all films act as expected in Midjourney, probably due to insufficient source material on the internet and/or in the dataset.
hooded figure cemetery, [film stock] --aspect 2:3 --sameseed 1
Colour Film
Kodak Portra 160
Kodak Portra 400
Kodak Portra 800
Kodak Ektachrome 100
Kodak Ektar 100
Lomo 400
Cinestill 800T
Cinestill 50
Agfa Vista 400
Fujichrome Velvia 100
Fujicolor C200
Fujicolor Pro 400H
Fujicolor Superia 1600
Kodak ColorPlus 200
Kodak Gold 200
Kodak Ultramax 400
Lomo 100
Provia 100F
Superia 400
B&W Film
Ilford HP5 Plus 400
Ilford Pan F Plus 50
Kodak T-Max 400
Kodak Tri-X 400
Ilford Delta 3200
Ilford Delta 100
Fomapan 400
Ilford XP2 400
Neopan Acros 100
landscape, [film stock] --aspect 3:2 --sameseed 1
Colour Film
Kodak Portra 160
Kodak Portra 400
Kodak Portra 800
Kodak Ektachrome 100
Kodak Ektar 100
Lomo 400
Cinestill 800T
Cinestill 50
Agfa Vista 400
Fujichrome Velvia 50
Fujichrome Velvia 100
Fujicolor C200
Fujicolor Pro 400H
Fujicolor Superia 1600
Kodak ColorPlus 200
Kodak Gold 200
Kodak Ultramax 400
Lomo 100
Provia 100F
Superia 400
B&W Film
Ilford HP5 Plus 400
Ilford Pan F Plus 50
Kodak T-Max 400
Kodak Tri-X 400
Ilford Delta 3200
Ilford Delta 100
Fomapan 400
Ilford XP2 400
Neopan Acros 100
