Questions: Entertainment & Arts

I learnt because nowadays (since the first Holland film) they're filmed digital cameras (long gone is film, apparently or even enhanced film a'la Blu-ray remastered modern type) - 🎥📽️ I for one watched the movie. I didn't see the first, watched the last two.
***Spoilers - it's a shame I learnt they film "New York scenes" in England and that kind of ruins the authenticity for me, who knows if for the actors and crew as well. And secondly, I felt the only strongest scenes of intrigue were whenever Holland was sharing scenes with - insert new 🆕 character's name.
👀 I felt that the limited footage between him and / they, redeemed the almost whole 2.5 hours I sat there - 💺 gratefully and comfortably mind you 🥤😋 🍿👌🏻

You know when you read a book you may come across a chapter where a character or characters recall events in the past and so one chapter or two is dedicated just to this flashback.

Are you generally ok with reading flashbacks in books? or do they bore you? frustrate you? what do you think?