We're not sure if the realization of "Rambo IV" actually hinges upon the success of "Rocky Balboa" next week at the box office, but if it does, we're buying our tickets for the latter now. True, we've always loathed Rambo movies (perhaps even more so, Rimbaud movies), but something tells us this one could be different. If our favorite Lord of Flatbush can get the bankroll from "Balboa" to just bring a certain Eagle......