How about both?
The first three Indiana Jones movies had their fair share of supernatural craziness—ghosts in an ark, melting faces, magical glowing stones, hearts beating after being ripped out of chest cavities, a healing holy grail, and a 700-year-old knight. Nineteen years later, Indiana Jones and the Kingdom of the Crystal Skull could've peddled your average, expected number of unearthly delights and dangers, but Spielberg, Lucas, and crew decided to push everything to mind-blowing (and head-scratching?) extremes. Yes, much of the new movie is absolutely preposterous—from the preposterous secrets behind the crystal skull to the preposterous action sequences to Cate Blanchett's preposterous accent—but after all this time would it really be prudent to deliver just another Indiana Jones movie? The moviemaking team have merged genres here, namely action/adventure with...
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...launching the franchise into the stratosphere and sparking the most heated love-it-or-hate-it debate since, oh, I don't know, choose an analogy here, how about..."since Hillary Clinton."
If you look at my list of my favorite movies in my profile, you'll notice that I haven't changed "The Indiana Jones Trilogy" into "The Indiana Jones Tetralogy." That is to say, the new film didn't change my life and it's probably not going to change yours. But it's loads of fun if you're willing to check your sense of sanity in at the door.