Tom Hanks -- Reunites with Wilson!! Brian Williams May Remember It Differently (TMZ TV)

Tom Hanks had an awesome reunion with his "Cast Away" co-star, Wilsoooon!!! It all went down at a Rangers game in NYC ... and NBC's Brian Williams was there too.

Years from now, Brian will recall it was a Knicks game and Tom reunited with the piano from "Big" -- but let's not get hung up on details.