Passage: The Dark Knight is often considered to be one of the greatest superhero films ever made. On aggregating review website Rotten Tomatoes, The Dark Knight has an approval rating of 94%, based on 332 reviews, with an average score of 8.5/10. The site's critical consensus reads, "Dark, complex and unforgettable, The Dark Knight succeeds not just as an entertaining comic book film, but as a richly thrilling crime saga." Metacritic, which assigns a normalized rating based on reviews from top mainstream critics, calculated an average score of 84 out of 100, based on 39 critics, indicating "universal acclaim." CinemaScore polls reported that the average grade cinemagoers gave the film was "A" on an A+ to F scale; audiences skewed slightly male and older.Roger Ebert of the Chicago Sun-Times, awarding four out of four stars, described The Dark Knight as a "haunted film that leaps beyond its origins and becomes an engrossing tragedy." He praised the performances, direction, and writing, saying the film "redefine[s] the possibilities of the comic-book movie." Ebert stated that the "key performance" is by Heath Ledger; he pondered whether he would become the first posthumous Academy Award-winning actor since Peter Finch in 1976. The Oscar was awarded to the late Ledger. Ebert ranked this as one of his twenty favorite films of 2008.Peter Travers of Rolling Stone wrote that the film is deeper than its predecessor, with a "deft" script that refuses to scrutinize the Joker with popular psychology, instead pulling the viewer in with an examination of Bruce Wayne's psyche. Travers praised all the cast, saying each brings his or her "'A' game" to the film. He says Bale is "electrifying", evoking Al Pacino in The Godfather Part II, that Eckhart's portrayal of Harvey Dent is "scarily moving," and that Oldman "is so skilled that he makes virtue exciting as Jim Gordon." Travers says Ledger moves the Joker away from Jack Nicholson's interpretation into darker territory, and expresses his support for any potential campaign to have...

Question: What did the Bale think of Al Pacino's role?
electrifying