Monty Python and the Curse of the Natural One

My problem was that the characters are generally unlikable and unfunny, except the barbarian lady, she was the only good part of that movie.

That movie was exactly like a DnD session, even including the OP NPC that the DM introduces to finally advance the plot because the players are all acting like bumbling idiots.
I absolutely loved the movie and I think it's one of the best game adaptations ever.

Just played a session where there was a mirror with a symbol of a full moon, as well as a nearby moondial that shows the current phase of the moon. The party deduced that the moon needed to be a full moon to work, but no one wanted to wait days until the moon was in the right phase. One of the players decided to expose their whole ass to the mirror to see if that type of "full moon" would do anything. When that didn't work, a sorcerer in the party used an illusion spell to make the actual moon in the sky resemble the other character's bare ass. Sadly, that also didn't work.

I once made a good roll and my character threw a goat at a kobold. Halflings +1 to throwing.
My DM started to calculate the damage, gave up and just said the kobold died. Then we figured out goats had more hp than kobolds and had a goat in the party...til the end of the campaign lol. It's was out goat of holding.

I remember once my players spent like 15 minutes discussing how to get across a 10 foot long puddle of water in a cave.
Eventually I had to remind them that 10' isn't that far, and you can RAW jump your strength score in feet with a running start. They didn't need to build a bridge or cut into the walls. They could also just go into the water, but I understand not wanting to submerge yourself in cave water when you don't know what's down there.

I was sneaking into a building while wild shaped into a cat, the mage was quietly removing knives from the kitchen with mage hand before creeping in the window. Our artificer was making sure there was no one in the manor's first floor bathroom. Upon finding a gentleman squatting down to relieve himself, she threw acid on him in a panic. That was when we rolled for initiative.
- Your artificer woke up that day and chose violence.
  
  Not just violence, she melted a dude's junk off with acid. Just some staff in the manor, not even a guard.

I was told about a session where a character was trapped in a room with a bunch of enemies right outside the door. He told the DM he wanted to open the door and cast fireball. The DM asked if he really wanted to do that and warned it might not be a good idea, but he insisted. So the DM said the resulting explosion killed the enemies and the character's head went rolling down the hall. Always read your spell descriptions!