This is Quentin Tarantino's "Rio Bravo"
Quentin Tarantino("QT") has many times professed a love for Howard Hawks' 1959 Western, "Rio Bravo." On one occasion, QT said that he tested potential girlfriends by showing them "Rio Bravo." If the lady didn't much like it...out.
One of the things QT said about "Rio Bravo" was something like "its not just about its opening weekend performance in 1959...its how it has lived on for decades as a comfortable movie you can watch again and again."
This is one of the connections that "Rio Bravo" has with Jackie Brown. Its opening weekend is long ago now -- December 1997 -- but its a movie a lot of us watch at least once a year, or any time we see it on TV ("Hold it...its Jackie Brown...I'm watching this.")
Other elements:
Both movies are long and rambling. OVERlong, said some critics of both movies. But if you like the worlds and people of both movies, you don't want them to EVER end.
Both movies have many scenes of different characters talking and interacting. From Kill Bill 1 on, QT became much more of an action director, but with Jackie Brown, there is a pleasure in just sitting back and watching people converse with one another. They did that in Rio Bravo, too.
Both movies have a respect for older aged characters with sexual feelings. In Rio Bravo, older John Wayne has feelings for younger Angie Dickinson, but their love is more verbal than carnal. Pam Grier and Robert Forster are age-peers, but have the same kind of comfortable, lived-in affection for each other.
Both movies have some action, but not a lot. And both movies are deadpan funny.
Both movies have large ensemble casts:
Wayne, Martin, Brennan, Dickinson, Nelson.
Grier, Jackson, Forster, DeNiro, Fonda, Keaton.
and...leaving where I came in...both movies can be watched, comfortably and with gratitude, again and again and again.