Joker: The Batman Easter Egg You May Have Missed
https://www.ign.com/articles/2019/10/08/joker-movie-batman-easter-egg-batpole
(警告：新闻涉及非关键剧情，还没看过电影的请谨慎评估是否继续阅读。)
Joker is obviously not a typical comic book movie in that it's lacking the
usual hallmarks of the genre that fans have come to expect, debuting without
a post-credits scene or many notable comic book references.
However, both Joker director Todd Phillips and editor Jeff Groth confirmed to
IGN the existence of a Batman Easter egg during the scene where Arthur Fleck
visits Wayne Manor.(翻译：然而，小丑的导演Todd Phillips和剪辑Jeff Groth都向IGN
确认了在Arthur Fleck访问韦恩庄园的那一段场景中彩蛋的存在。)
As Arthur (Joaquin Phoenix) approaches Wayne Manor, he spots young Bruce
Wayne (Dante Pereira-Olson) playing on the front lawn in his gazebo-like
jungle gym. (Seriously, what kid goes outside to play in a cashmere
overcoat?! Only Bruce Wayne.)
Bruce's curiosity is piqued by the approaching man wearing the red clown nose
so he exits his playset by sliding down a pole. A "Batpole," if you will.
Phillips and Groth each acknowledged in separate chats with IGN that the pole
is indeed an homage to the Batpoles used by the Dynamic Duo in the 1960s
Batman TV series.(翻译：菲利普斯和格罗斯在与IGN的单独聊天中都承认，这根柱子确
实是对1960s年代蝙蝠侠电视连续剧《活力双雄》所使用的蝙蝠柱的致敬。)
For those unfamiliar with the classic Adam West show, Bruce Wayne and Dick
Grayson would receive a call for help from Commissioner Gordon on the
Batphone in the study of Wayne Manor. Flipping a switch hidden inside a bust
of William Shakespeare, Bruce would exclaim "To the Batpoles!" and a secret
entrance to the Batcave would appear behind a bookcase.
Bruce and Dick would then access the Batcave by sliding down these
firehouse-style poles, Bruce would flip the Instant Costume Change Lever and
they would land in the Batcave in full costume. The Batpoles could also lift
them back up into Wayne Manor and change them back into their civilian
clothes. Holy science, Batman!