The final act of Thunderbolts* looked like it had broken one of the MCU's most sacred rules, and it genuinely stunned me. After all, until that point, Thunderbolts* had proved that it was unlike other MCU movies in many ways. For example, the fact that Bob was open about his use of meth was a blink-and-you'll-miss-it moment that I had to double-check, proving that drug use isn't a subject purely confined to the frenetic scripts of R-rated projects like Deadpool & Wolverine and that Marvel is happier than ever to deal with heavier subjects.