title.ratings.tsv.gz – Contains the IMDb rating and votes information for titles

tconst (string) - alphanumeric unique identifier of the title
averageRating – weighted average of all the individual user ratings
numVotes - number of votes the title has received

title.basics.tsv.gz - Contains the following information for titles:

tconst (string) - alphanumeric unique identifier of the title
titleType (string) – the type/format of the title (e.g. movie, short, tvseries, tvepisode, video, etc)
primaryTitle (string) – the more popular title / the title used by the filmmakers on promotional materials at the point of release
originalTitle (string) - original title, in the original language
isAdult (boolean) - 0: non-adult title; 1: adult title
startYear (YYYY) – represents the release year of a title. In the case of TV Series, it is the series start year
endYear (YYYY) – TV Series end year. ‘\N’ for all other title types
runtimeMinutes – primary runtime of the title, in minutes
genres (string array) – includes up to three genres associated with the title