public class Film {
    @JsonProperty("title")
    private String title;
    @JsonProperty("episode_id")
    private long episodeId;
    @JsonProperty("director")
    private String regisseur;
    @JsonProperty("release_date")
    private String releaseDate;
    @JsonProperty("characters")
    private List<People> karacters;

//getters
}

public class People {
    @JsonProperty("name")
    private String naam;
//getters
}