How come there is nearly no Hollywood movie about the korean war?

hollywood movies contain everything, even old fairy tales from some kind of infamous tribe in africa, not to mention those thrilling war movies, but i found an interesting fact that there is almost no hollywood movie based on the korean war which happened from 1950 to 1953, which is also the biggest warfare ever occurred in our planet after WW2.

maybe there is movie about the korean war, but i haven't heard any.How come there is nearly no Hollywood movie about the korean war?
There are few movies:

Retreat, Hell (1952)

MASH (1970)

Pork Chop Hill (1959)

The Bridge At Toko Ri (1955)

Men In War (1957)

The Manchurian Candidate (1962)

The Brotherhood Of War (English title) (2004)

Steel Helmet (1951)

Inchon (1981)How come there is nearly no Hollywood movie about the korean war?
hamburger hill and beach red.