Heavy metal meets horror
“Deathgasm” has a routine plot couched in a stylishly bizarre setting. Heavy-metal obsessed Brodie (Milo Cawthorne) is sent to live in a remote area with his fundamentalist Christian aunt and uncle after his drug-addicted mom is incarcerated. After putting up with the abuse of his new high school’s popular kids, Brodie falls in with a group of misfits and fellow rockers. They form a band, Deathgasm, and decide to rehearse with sheet music they find at the house of a reclusive rock icon named Rikki Daggers (Stephen Ure). They soon discover that these songs have the power to  summon demons. Several enter the bodies of nearby peers and grown-ups. This draws the ire of cult leader Vadin (Tim Foley) and his evil followers.<br /><br />This New Zealand horror/comedy features gallons upon gallons of human blood and viscera splattering everywhere. “Over-the-top” might be too tame a label for a film that strives in every frame to be more offensive, gut-wrenching, and gory than anything in horror cinema that’s gone before. Writer/director Jason Lei Howden seems to have set a personal goal to out-gross even the most graphic of previous horror flicks. The effects are so preposterously outrageous that they often inspire laughter rather than shock.<br /><br />If you’re into the latest in gross-out special effects, this is your movie. The blend of heavy metal, horror, and comedy might alienate large swaths of the horror audience that prefers hair-raising chillers to gratuitous blood baths.<br /><br />Bonus extras on the Blu-ray release include commentary with writer/director Jason Lei Howden; making-of featurettes; the music video “Deathgasm” performed by the band Bulletbelt; and theatrical trailer.
The movie title "Deathgasm [Blu-ray]," available on Movies & TV, has received an average rating of 4.6 from 840 reviewers. 
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This title falls under the categories of Movies & TV, Featured Categories, Blu-ray and Horror. 
The additional details include the following in key-value format :
 {"Genre": "Horror/Supernatural", "Format": "Blu-ray, Widescreen", "Contributor": "James Blake, Sam Berkley, Jason Lei Howden, Milo Cawthorne, Kimberley Crossman", "Language": "English", "Runtime": "1 hour and 26 minutes", "Is Discontinued By Manufacturer": "No", "MPAA rating": "NR (Not Rated)", "Product Dimensions": "0.7 x 7.5 x 5.4 inches; 2.4 Ounces", "Item model number": "35224394", "Director": "Jason Lei Howden", "Media Format": "Blu-ray, Widescreen", "Run time": "1 hour and 26 minutes", "Release date": "January 5, 2016", "Actors": "Milo Cawthorne, James Blake, Kimberley Crossman, Sam Berkley", "Studio": "Dark Sky Films", "Country of Origin": "USA", "Number of discs": "1"}

Here is a brief synopsis of the title : High School is Hell! Metal-thrashing Brodie is an outcast in a sea of jocks and cheerleaders until he meets a kindred spirit in fellow metalhead Zakk. After starting their own band, Brodie and Zakk's resentment of the suburban wasteland leads them to a mysterious piece of sheet music said to grant Ultimate Power to whoever plays it. But the music also summons an ancient evil entity known as Aeloth The Blind One, who threatens to tear apart existence itself. Their classmates and family become inhabited by demonic forces, tearing out their own eyes and turning into psychotic murderers... and this is only the beginning!  It's up to Brodie, Zakk and their group of friends to stop a force of pure evil from devouring all of mankind. Produced in association with the New Zealand Film Commission and MPI Media Group, the hilarious and outrageous  DEATHGASM features an amazing original soundtrack of fist-banging metal and practical effects by Main Reactor (Evil Dead remake) to satisfy metalheads and splatter fans alike.  DEATHGASM will gush bodily fluids, rain limbs and tickle your funny bone, before tearing it out and giving you a stiff beating with it..