The filming process on Avengers: Infinity War and Avengers: Endgame was a bit unprecedented. Not only were Marvel's two mega-movies shot back-to-back, but to ensure maximum secrecy, accommodate the massive cast's schedules, and allow the Russo Brothers room to piece together their story, plot details were kept from the performers, things were shot especially out of sequence, and often, scenes were filmed that were never meant to be used at all. Case in point: In an interview with Yahoo, the ever-delightful Mark Ruffalo revealed that he had no idea whether Bruce Banner would survive …