Wes Craven's first film was a crude but shocking horror opus that, like George A. Romero's Night of the Living Dead (1968), became a grind house hit largely because it went much further than terror films before it had been willing to go. Often compared to Ingmar Bergman's stark medieval rape drama The Virgin Spring (1960) (though one wonders whether this was influence or just coincidence), Last House on the Left follows a group of teenage girls heading into the city when they hook up with a gang of drug-addled ne'er-do-wells and are brutally murdered. The killers find their way to the home of one of their victim's parents, where both father and mother exact a horrible revenge. Like Tobe Hooper's The Texas Chainsaw Massacre two years later, Last House on the Left was an unrelievedly dark vision of contemporary horror that inspired many future films which copied its effects without achieving its visceral impact.~Mark Deming
Audio commentary with actors David Hess, Marc Sheffler and Fred Lincoln
Still Standing: The Legacy of the Last Home on the Left featurette with Wes Craven
Celluloid Crime of the Century documentary
Scoring Last House featurette
Tales That Will Tear Your Heart Out unifinished short film by Wes Craven
Fred J. LincolnWeasel
Gaylord St. JamesDr. Collinewood
Cynthia CarrMrs. Collingwood
Sandra CasselMari Collingwood
Lucy GranthamPhyllis Stone
Sean S. CunninghamProducer
David HessComposer (Music Score)
Last House on the Left
Year of Release
Collector's Edition, DVD
Enhanced Widescreen for 16x9 TV
English, French, Spanish
The Last House on the Left [Collector's Edition] [DVD] 
Wes Craven's Original Unrated Version Blu-ray 1972
This comes with a limited edition print. Has commentary from the cast as well as both directors and producers. A few short movies packed in the extras as well as behind the scenes. There are some deleted scenes and forbidden footage. Outtakes and at 1.85:1 format region 1 (A) at a running time of 84 minutes.
Lets be honest, if you're buying this movie on blu-ray you already know what to expect. Some bad acting, awkward comedic scenes, graphic violence.
It's old, it's beat up, it's extremely low budget, as another review pointed out yes there is an abundance of grain and things of that nature. Thank god for it, there's no DNR or anything like that added to the film, you're seeing it the way it was meant to be seen. But keep in mind this is an old movie, this certainly isn't demo quality, not something you'd want to pull out to impress your friends with your high-def setup.
If you're like me, and you own the 2002 dvd release, this is definitely a worthy upgrade for the extra features alone. (2 commentaries, multiple featurettes, deleted scene, etc.) The film also has a better (not by much mind you) transfer.
Last House on the Left is a great exploitation film that "inspired" films like House at the Edge of the Park, Last House on Dead End Street, etc. David Hess does wonderful in his role and did a great job on the music in the film. Just do some research and know what you're getting into before you blind buy a film like this.
For the price, this is a great deal, my one and only complaint is that the blu-ray doesn't have a menu, everything is only accessible through the pop-up menu when the film is on.
All together a pretty average film. If you've seen the remake you owe it to yourself to see this. In my opinion the remake is better. The soundtrack is a bit cheesy. The resolution on this is improved over the DVD but could be better.
1) For the time this was made, I can see why it is held in high regard. It fits in well with other films of the same period. 2) In this day and age, it is fairly sedate. The remake is more in line with today's standards of violence/gore/horror. I'd have to say that the remake is better than the original. 3) Definitely worth seeing at least once, especially if you like the films of Wes Craven.