Entertaining but chock-full of modern epic movie cliches (spoilers)
The Last Legion is not a bad movie by any means. It's very entertaining but chock full of movie cliches old and new, so much so that it's almost a TVtropes case study. I don't care about historical accuracy nor fidelity to legend, so if it wants to make the prequel to Camelot a combination of Braveheart and Phantom Menace I have no problem with that. 6/10. (Nearly 7/10.)
cliches:
the kid is a likable scamp - T2, Phantom Menace
chosen boy - T2, Phantom Menace
bad guy wearing scary mask - Darth Vader, Willow
unbelievably ass-kicking chick - Serenity, King Arthur, Angelina Jolie movies etc. (She's so ass-kicking that Roman soldiers stand around and watch her fend off a bunch of guys without helping her!)
imperial and/or feudal warriors anachronistically fight against tyranny (they're caesarists!) and for human rights - Braveheart
flirting by fighting - Daredevil
Jedi guru - Star Wars franchise
everyone wants the magical McGuffin - Lord of the Rings, Conan (2011)...
the dude is a lady - Dragonslayer
Other notes:
royal bloodline makes rule legitimate - Hail Caesar?
unnecessary but cool ancient high tech (multi-bolt firing weapon, snap-together grappling hook crossbow)
when boy becomes a man he develops an English accent