Bad acting. Bad script. Wildly inaccurate. I am slightly surprised that Charlie Starkweather hasn't risen from the grave and hunted down the makers of this so-called film. This is the kind of worthless movie you would expect to see on late night TV, probably on one of the cable channels that specializes in bad movies. Unfortunately it's not bad in a good, goofy, campy kind of way - it's just generically bad.
Let's start with the script, since that is the greatest offense. The dialogue contains phrases that no one in 1950's Nebraska, much less Charlie Starkweather and friends, would ever say. I doubt anyone today would spout out such ridiculous lines. It's the kind of stuff you might find in a Harlequin Romance from the 1970's. Where does Hollywood find such talentless writers who come up with nothing but clichéd hacks? If that weren't bad enough, the script is full of inconsistencies: one minute a character will say something, the next minute he will contradict what he said before, as if he didn't remember what he just said. It's just plain dumb writing.
The acting is as bad as you would expect. I've seen better acting in worse films, but bad acting is bad acting - no further explanation necessary.
It's so inaccurate you wonder if the writer and director read even the sketchiest accounts of the events covered. They assign Charlie's motives in killing to a shadowy character (Lance Henricksen) who talks him into murdering people for the dumbest reasons you've ever heard. No attempt is made at historical accuracy - if you think you're going to learn something about the Starkweather-Fugate case from this film, then think again. All it will do is lead you astray. I wonder that Caril Fugate hasn't sued the makers of the film for portraying her in this manner.
So there you have it: lame all around, from the script to the final credits. Thankfully there has been a decent movie made about these events, check out "Badlands" with Martin Sheen and Sissy Spacek. It's over a decade older, but much better done, if still not very accurate.
In conclusion, if Charlie were to rise up and kill the director, script writer, and everyone involved in this movie - I doubt a jury would convict him.