>>212352175i haven't watched rocky 4 (in which drago shows up, rock 3 is clubber lang), but i've seen some scenes and it does resemble the soviet boxing style, modern "soviet style" boxers don't look the same way anymore, the closest one is usyk with the pendulum stepping. the movies are very well researched in my opinion, its just that showing realistic fights in movies is almost impossible. the most realistic boxing i've seen is in Raging Bull.
if you watch this you'll see they got the guard, stance and long-range punching right.
https://www.youtube.com/watch?v=L4vjCTv1wGA