BUT IT'S REALLY NOT TRUE AT ALL
Two days ago, in an article about his disappointment with Brian De Palma's films post Blow Out, Movie Morlocks' Greg Ferrara wrote, "the Odessa steps/Railway station scene in The Untouchables is less a nod to Eisenstein than a 'look, here’s the Potemkin sequence with different actors' setup." Well, no, that's not true at all-- it actually is more of "a nod to Eisenstein," but uses the idea of the baby carriage, and specifically its shots of the wheels hitting each step on the way down, to add suspense and tension to the already suspenseful shoot-out happening on the train station steps. De Palma's contrast here of the innocent (the baby) and the dangerous men all around is part of a theme that runs through the entire film.
All anyone has to do is watch Eisenstein's Odessa Steps sequence side-by-side with De Palma's to see that aside from a lot of steps, a baby in a pram, and people falling violently, what De Palma has constructed in The Untouchables in terms of set-up, staging, story, cinematography, suspense, slow motion, sound, humor, etc. is far different from what is on the screen in Eisenstein's construction. YouTube it for yourself.