I have seen a few examples where one uses an infinitive with the pronoun "es."
Namely, in the movie Downfall (Der Untergang), Hitler says:
Es bleiben im Raum: Keitel, Jodl, Krebs und Burgdorf.
Never before the day I watched that movie, had I ever seen an infinitive used with "es." Could someone explain he chose bleiben over the finite-verb bleibt?