These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
The HeadOn skit from Disaster Movie, often considered to be the best joke in the entire film.
Padding: Meet the Spartans' total runtime is 86 minutes, but about twenty minutes of that is extra padding before the credits roll.
Shallow Parody: Not surprising, since the producers have admitted they generally just watch the trailers and go from there.
They Just Didn't Care: To a near jaw-dropping degree. Jokes are usually painfully obvious, show no knowledge of the subject being parodied and are quick to rely on toilet humour, gay jokes and irrelevant pop culture references.