I sat down at the movie theater to watch Spider-Man: Brand New Day with my mind empty. Consult the HulkWhen we’re introduced to Peter Parker in Brand New Day, we quickly learn his body is going through changes. Presuming the Hulk is a genetic condition, small or short interfering siRNAs (siRNAs) present a plausible mechanism for keeping the big guy in check. In the exchange with Bruce in Brand New Day, Peter probes the possibility of expanding inhibition to other enhanced individuals. Peter Parker (Tom Holland, right) approaches Bruce Banner (Mark Ruffalo, left) with a few questions in Spider-Man: Brand New Day (2026).