"Metacritic tells Marvel Studios News that they ingest all of their movie and cast data from IMDB. Metacritic does not allow edits by their users on their site. IMDB does, however, so if an IMDB user adds a character/actor on that site, it’s going to populate on Metacritic. Garbage in, garbage out, and so on.
Before you head over to IMDB looking for Silver Surfer, I already checked. You won’t find Silver Surfer or Curt Clendenin listed on the IMDB pages for Avengers: Infinity War or Avengers 4.
Metacritic could not account for the discrepancy. They did agree with our own supposition, however, that an IMDB user could have added the Silver Surfer to the Infinity War page, causing Metacritic to ingest that information, before the listing was subsequently removed, perhaps for inaccuracy. Metacritic updates its information from IMDB frequently, but it does not always account for new additions, or information that has been removed.
Metacritic noted that they have had incorrect cast/movie information in the past, only without this much attention.
In summary, the Metacritic listing for Silver Surfer in Avengers: Infinity War came from an IMDB listing that no longer seems to exist"
Hmmmm...well I guess we’ll see in a month anyway. Be nice to happen, but if not I’m still pretty psyched.