If you like picking apart movie flaws, this one will require a notebook - and diligence to sit thru.We spent more time picking out faults in this film than we took watching it! From the start, when it's clear the costume budget ran out before they got to the main characters (eg boy with long hair and wearing camo shirt in 1956 or another wearing a bright yellow tie and untucked shirt in 1956); to not employing someone who knew how to use a calculator (set in 1956 and the "present day" but 74 years apart... so 2030? and the 40yo daughter whose mother would therefore have been 50ish when pregnant) to a slow-mo stare off when the villain and protagonist meet; to the villain standing there and waiting to be punched; to numerous scenes that do little to advance the story; to the 16yo kids regularly saying "But we're just kids, they're adults, we can't beat them" - what movie of this genre ever has kids regularly thinking that way??; to the villain single handedly beating off an attacker in one scene, and then simply running off terrified when the same attacker returns later - despite now having his henchman at his side to help, and this at the moment he is about to reach the goal he'd give anything to achieve and was his life's quest. And then there's the whole point of the movie - to find a piece of meteorite from a comet that will somehow prove who discovered the comet... yet it's never explained how that correlates as proof. That is, how can finding a piece of meteorite off a comet prove who discovered the comet??This was the worst made film I've ever watched. It's a film that feels like someone with little experience in scriptwriting, editing or film construction refused to take any input or advice. That said, the acting was mostly quite good and the overall plot idea is good too.