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.
YMMV: War of the Worlds
The TV series has examples of:
Creator's Pet - Debbie, who goes on to dominate many of the second season episodes, and is eventually the one who kills the lead Morthren in the season finale.
Fridge Logic - It's discovered in the first episode that the bacteria that put the aliens into hibernation is killed off by radiation. It looks the creators forgot that each one of the war machines had an UNSHIELDED nuclear reactor powering it.
Seasonal Rot: Most diehard fans tend to hold the opinion that the changes from the first to second season (which included the deaths of several major and supporting characters - including the villains of the first season, the world flipping over Twenty Minutes into the Future and most of the first-season plot threads dropped in favor of standalone episodes) caused the show's death.
Esoteric Happy Ending: During the course of the film, the implication is that a very sizeable proportion of the human race has been exterminated and much of the planet has been laid to waste by the invaders. Yet with possibly millions/billions of people dead in the most gruesome ways and the earth in ruins, one gets the impression we're supposed to find the ending in which the family we've been following all somehow survive and reunite with the motherto be a happy one.
Faux Symbolism: When Ray and Rachel arrive in Boston, one of the first things they see there is a statue of a Minuteman covered in dying alien weeds.
Hate Dumb: Quite a lot of people were annoyed and frustrated by the ending, not knowing it was lifted directly from the novel. That said Robbie's unexplained survival is the most criticised aspect of the finale.
Taken all together, Rachel screaming takes up less than a minute of screen time in a 2-hour movie. It doesn't stop people from exaggerating.
Robbie's survival also has an anologue from the book. The main characters returns to his home with absolutely no hope of his wife surviving the martian invasion, and yet finds her alive and unharmed.
HSQ: Spielberg keeps this as high as possible. One scene, a clever nod to the original story, involves a crowd of people, including our protagonists, walking through town, when a railroad crossing signal sounds. Everybody clears the tracks as the gate comes down. Then the train passes. It is on fire. It leaves, the gates go up, and it is not commented on by anyone. Roger Ebert, who gave the film a mixed but mostly negative review, called this scene "unforgettable".
The Scrappy: Robbie. His detractors point out he spends a lot of the movie being an asshole whilst seemingly wanting to get himself killed charging off into harms way. The fact his suicidal actions don't get him killed, and his survival is never explained, only annoyed his critics more.
Fans are often irritated by Rachael too, largely for being The Load.