Infinity War getting great first reactions.

That's true of course.

But just like the odds are equal every time you flip a coin, eventually it will come up tails.   So a streak of 18 heads in a row would make me expect tails to turn up soon just on the strength of knowing that heads/tails is usually a 50% probability and those things even out over time.

With films, every studio makes bad ones.   There aren't any exceptions.   So while Marvel does appear to have a much better run operation than WB does  (check this out for how screwed up WB is:  www.youtube.com/watch?v=PE2JFvMMbdw  )    they are a movie studio and bad movies do happen despite the best intentions.    Marvel's unprecedented win streak makes the gambler in me expect the normal "evening out" thing to show up at some point even though logically the odds are the same for each movie.    ....Odds Marvel has beaten so far.