When you get a little over half way through a movie and start to get exasperated because it hasn't ended yet, you know something's wrong. The big-time action movie I'd compare this to is "Last Action Hero", because that too had a good premise, interesting visuals, good actors, and just didn't know when to stop.

Another problem was all the 1980s references! I get that the world's creator would have been into 20th-century pop culture, but why are all the kids from the future into it too? I mean that would be like a world where our pop culture references were all from the 1950s. That just seemed lazy to me.

Good action sequences, a few interesting characters performed with skill, and some scintillating visuals raised it a bit above a 5 to a scant 6 for me. But I'd only recommend this if you are getting it for free (like I did on Prime). Don't bother paying extra for it.