The folks at the MCU seem to be cognizant of this, and have actually gone to great length to throw folks off their tracks, and therefore allow for more moments of surprise and magic in the moviegoing experience.
That’s exactly what happened when Guardians of the Galaxy actor Michael Rooker was spotted on the set of Avengers: Infinity War.
Considering the huge audiences of shared universes like the MCU, keeping plot details tightly under wraps is of the upmost priority for the studios.
And when you factor how closely the actors are being monitored by the rabid fanbase, this has become increasingly difficult in recent years.