Let me start by saying that this movie is not for all tastes: It meanders like one of its shroom-addled characters throughout, giving little to aid the viewer in discerning the story and its mix of entheogens and occultism will soar quite happily over the heads of most people. Kill List, this is not.
If I had to compare A Field In England to anything it would be movies like El Topo or Holy Mountain: Dense, symbolism-rich movies that reward patient and repeat viewers with deeper meaning. Unlike those movies, however, AFIE is a dark and brooding experience filled with frightening imagery and paranoia. It may not be a film to watch whilst experiencing an altered state yourself.
The acting in the movie whilst not outstanding certainly bears relation to its occult horror forebears of the 60s and 70s - Films such as The Witchfinder General and Blood on Satan's Claw - hammy but not buttock-clenchingly so. I must state that Michael Smiley was fantastic, garbed in cape and hat and wielding a flintlock pistol, he exuded menace and bad-assery throughout, a perfect counterpoint to Reese Sheersmith's performance as a sniveling, cowardly scholar.
The soundtrack is fantastic, an ominous mix of traditional folk, simple drum rhythm and dark ambient that aids in the drug-fueled paranoia motif that carries the movie from start to finish.
In conclusion then. This is not a film for everyone. It is vague, challenging and mystic, and that will no doubt alienate most. But if you have a penchant for occult horror, psychedelic cinema or movies that you can peel back layer by layer then I'd reccommend A Field In England gladly.