Stupidity: Natasha is in Norway on the run - Norwegian radio mentions her by name, Yelena talks about her being on magazines, she's very recognisable, and yet she goes into a gas station with her sister without changing her appearance in any way, and loudly talks about being an Avenger and killing people, right in front of the gas station attendant who for all she knows would be on the phone to the authorities the second she's out the door.
Black Widow (2021)
1 stupidity
Directed by: Cate Shortland
Starring: Scarlett Johansson, Rachel Weisz, David Harbour, Florence Pugh
Other mistake: Black Widow and her sister steal a BMW. Getting away they damage the left rear quarter. A few cuts later they show the car again and it has no damage to the left rear quarter. (00:40:15)
Natasha Romanoff: How many others are there?
Yelena Belova: Enough.
More trivia for Black Widow
Question: Was the post-credits sequence changed at all, given the film's delay? Without giving specifics away, this was intended to be the first appearance of a certain character, but due to changed release dates that character first appeared in one of the Marvel TV shows instead. Presumably the character featured would have had slightly more of an introduction in this film if they hadn't already been in the TV show?
Answer: I can't attest to if the end credit scene was altered, but I can say that it's been Marvel's M.O. to introduce new characters to foreshadow upcoming projects without really giving them much of an introduction. For example, Fury, Thanos, Captain Marvel, the Wasp. It seems this credit scene was meant to tease the audience for her upcoming appearance in the TV show rather than build on who they've already established her to be.
Bishop73