Over all good, "too much sci-fi, the Crystal Skull is too far fetched, aliens?" Come on, people. What about the immortal knights of The Holy Grail? The magic stones of The Temple Of Doom? The power of the ark in The Lost Ark? Oh, but aliens is too much, right? Don't forget that Indiana jones is an homage to the movies Lucas and Spielberg used to watch when they were kids. The difference is the quality of the production, but all in all it's the same thing. Besides, this movie closes some circles (Marion), let us know what happen to other characters (Dad), respects time line (Indy met Pancho Villa in the TV series) and respects the actors age ("what are you, 80?"). So I would say, just like the other IJ movies, it's not perfect, but it's fun and good.