First things first, I clearly do not belong to the intended audience which is probably narrowed to kids, even if the dialogues are barely refined and sometimes ridiculous. This is a mix of Independence Day (1996), E.T. the Extra-Terrestrial (1982) and The Goonies (1985). Seeing this movie is definitely not a requirement to become a film buff. My own rating: 2 of 10. My rating while trying to belong to the intended audience, with a generous empathy boosted to the extreme: 3/4 of 10.