I once actually thought that when movies and shows were developing, I thought that they were being made within the year of their release date. I didn’t know that these projects were sometimes done in advance or took years to make.
That when ‘Commercial Breaks’ happened during shows, I thought they meant that the actors needed a break before resuming. Not realizing that episodes are already made and commercials just interrupt things to just sell you shit.
When I learned food and drinks were energy for your body, I actually thought that when I got sleepy or tired, I just needed to drink or eat something. Not realizing that it wouldn’t have mattered.
If I remember the commentary correctly, for the black knight scene in Monty Python and the Holy Grail, they actually had an actor with one leg in the suit performing once the knight lost a leg, then when he’s on the ground with no legs, they dug a hole to hide the actor’s existing leg. The voiceover is of course seperately recorded and not by the actors in the suit