Here are the best replies:
1. "I'm 100% convinced that every single person besides Vin Diesel is aware that the Fast and Furious franchise is now a parody of itself. People are supposed to laugh at it while they play it completely straight."
2. "Moonfall. I actually burst out laughing in the cinema near the end during either the hollow moon or the alien swarm part. I'd taken the movie seriously up until that point, but I couldn't take it anymore and had a giggling fit that lasted several minutes."
"For me, it was the line 'you're part of the moon now,' which my girlfriend and I still quote."
"The part of Moonfall that got me was when the main character is approached to HELP SAVE THE MOON FROM CRASHING INTO THE EARTH and he's like 'nah, I have plans tomorrow.'"
3. "Olympus Has Fallen and its sequels are completely ridiculous. In the first film, there are so many sad shots of the American flag and White House being blown up that I just can't take it seriously."
5. "Battleship felt like a spoof of Michael Bay movies."
"The elderly vets taking the museum ship out to fight the aliens was ridiculous, and I loved every second of it."
6. "Maximum Overdrive. It's easy to forget it was directed by Stephen King adapting one of his own stories."
"Stephen King uses this movie as an example whenever he's asked why he doesn't direct adaptations of his books anymore."*
*Author's note: We stan a self-aware King.
7. "Death Wish 3. When he gets the mail order Wildey Magnum, I knew this movie was destined for cinematic greatness."
8. "The most famous example is probably The Room."
9. "In The Life Zone, pregnant women are imprisoned and forced to have children. It's an anti-choice film, so we're actually supposed to side with the jailers. It honestly feels like a movie made by pro-choice filmmakers to make anti-choice people look bad. But no, it was written by true believers."
10. "The Pope's Exorcist — and it was spectacular. Glory shots of Russell Crowe on a Vespa, 90s quality CGI, and of course the accent. Oh my god the accent."
11. "Fateful Findings. Obsessed with the line 'Jim! I can't believe you committed suicide.'"
12. "Samurai Cop. The main actor thought filming was done and cut his long, black hair short, so he had to wear a terrible wig. It's so noticeable that you can't help but burst out laughing at the absurdity."
13. "Armageddon because of the line 'he’s got space dementia.' Not to mention, why would you train drillers to be astronauts when you could just do it the other way around?"
14. "Alien: Covenant (2017). I lost it when David said 'I'll do the fingering' to Walter."
15. "The Happening is gleefully unaware of its own awfulness. It's mostly closeups of Marky Mark looking confused while screwing around in the countryside without any real conclusion or resolution."
16. "Avatar: The Way of Water. The running joke throughout the movie is that they spent so much on special effects, they couldn't afford to hire an editor. The movie just goes on and on and on..."
"And the same kids get kidnapped and handcuffed to a different handrail three separate times for no reason."
18. "Twilight. The baseball scene is one of my favorite cinematic experiences ever. I was in tears."
H/T r/movies
Some responses have been edited for length and clarity.