This is an interesting way to start a movie - well it gets my thumbs up...I guess it's influenced by Peter Watkins 1964 documentary. Instead of starting with a battle and so forth it features the bloody and tragic aftermath. Shame it doesn't look like what I imagine Culloden moor is like - ie a moor - but you can't have everything. Wiki
Watch scenes from the 1978 version here
Watch part 1 of the 1964 groundbreaking BBC documentary Culloden here.
See the Battlefield Britain episode here