Quite an enjoyable history lesson for the first hour or so. Then Grohl decides to turn it into a "making of" documentary about the highly forgettable "Real to Reel" album ...

Jennifer Lawrence's Ass: The Movie.

Gone is the elegant minimalism from Alien. It's unnuanced, lacks the mystic of its predecessor, and the dialogue could just as well been taken from your typical 'Nam movie.

But for all its faults, it's still an entertaining movie to watch, very much due to Cameron's skills as an action director. It's just unfortunate that it fails to be anything more than just that.

A warm and heartfelt story about being young, confused, shy and in love. Just great.