"One of the most prestigious awards recognizing the cast as a collective unit is the Screen Actors Guild Award for Outstanding Performance by a Cast in a Motion Picture. Since the creation of this award in 1995, all but four winners of the Academy Award for Best Picture have been nominated for this SAG award first, and a dozen films have won both awards. The largest cast to win the SAG award for best ensemble is the 2001 film "Gosford Park," boasting 20 credited actors.
Stacker researched and compiled data on films with at least seven major actors, ranging from A-listers in lead roles to veteran character actors in supporting roles. To be included in this list, films were required to have a minimum 6.5 IMDb user rating or a 75 Metascore and at least 2,500 votes on IMDb."