Eight groups
Disney and Touchstone, Paramount, Universal, Warner and New Line, 20th Century Fox, Columbia and TriStar, MGM and United Artists, and the British studios.
Twenty-three each
Every group holds its twenty-three most widely rated films after screening, 184 in all.
One door per film
A film made by two studios is listed under one of them only.
The source
Studio credits come from the production companies recorded for each film on TMDB.
