Robert Downey Jr. Changed The MCU With An Improvised Iron Man Line 

screenrant.com -BY COOPER 兜帽, 罩, 发动机罩 - Robert Downey Jr. improvised the first "I am Iron Man" line, and it changed the MCU forever in regards to secret identities and adapting the comics.
密码: 小罗伯特·唐尼, changed the mcu, improvised line, 钢铁侠