Revealing mistake: Near the end when the orphans are exiting the building in the bus, you can tell they practised the sliding part. There are marks in the roof of the bus from previous takes.
Deadpool 2 (2018)
1 revealing mistake - chronological order
Directed by: David Leitch
Starring: Ryan Reynolds, Josh Brolin, T.J. Miller, Morena Baccarin, Zazie Beetz
Continuity mistake: Deadpool turns all but the last dial on his stove to the max setting in one shot, but in the next they are all turned different directions and the last one is turned as well.
Blind Al: Can you speak up? It’s hard to hear you with that pity dick in your mouth.
Trivia: On the scrolling text during the news broadcast it says "Notorious bank robbers Westervelt and Ghizas arrested Sunday evening after high speed chase." Dirk Westervelt was the film editor for "Deadpool 2." He also was an editor for "Logan." Nick Ghizas was the visual effects manager for "Deadpool 2." He was also a visual effects artist for the TV show "Agents of S.H.I.E.L.D." Westervelt was also an editor for the film "Notorious" and "Faster."
Question: Why is the man's groin blurred out in the fight-scene at the Japanese sauna? It's an R-rated movie (or unrated, depending on the cut of the film you watch), so it's not like they couldn't have shown it. The best I can figure is that it's a reference to the fact that genitals are blurred out in Japanese media due to "decency" laws. Is that what the joke was?
Answer: It is a possibility. In Japan, the showing of a person's genital area and/or pubic hair is considered obscene.