I bet

I agree and started to think so when he was sat at the table talking to claire and piggy kept walking past in the background......

There was lots of evidence throughout the film to support the idea that Piggy was a construct of Joe's mind. It was made perfectly explicit when Piggy and Joe made their attacks on the members of the gang. What did Piggy give to Joe to disguise him? Yes, well done, that's right.
A pig's nose.
So when 'both' of them are attacking their victims they look the same. Joe has 'become' Piggy and Piggy has become Joe visually as well as mentally. Piggy helps Joe gain revenge by making Joe 'become' Piggy, firstly by appearance and subsequently by action.
And that name, 'Piggy' - where does that come from? It seems to me like a bit of a childish name. How many grown men would prefer to have such a name? Perhaps the name 'Piggy' was the name of an imaginary friend of Joe's from his childhood resurrected in a time of crisis to help Joe do what he feels he has to but hasn't quite got the mental capability to do so without help. Hence Piggy's mysterious arrival from nowhere when Joe is at a low ebb.

by - Killer_Movie on Sat Jun 2 2012 12:33:34
Piggy was definitely a figment of Joe's imagination, as said I also started to think that early when he was walking unseen & unheard in the background when he was talking to the ex, there was also clues when Joe screamed "It's f'ing over" loudly at piggy & he neatly vanished. Although there was also a few times when I thought Piggy was possibly gay the way he coddled Joe so much.

This totally parallels Fight Club in the way in which Joe seemed so weak, like he didn't seem capable to be the killer just as I perceived Norton in the same way. The writer had to have had Fight Club in mind while doing the script. Even in the end Piggy is seen stabbing Joe, essentially killing off the last parts of Joe, leaving only Piggy's persona. Fight Club Norton shoots himself basically accomplishing the same goal.

He Stabbed the wall.. Not Joe.. I doubt very much he was a figment of Joe's imagination. I do think the director wanted us to believe that initially, but I'm pretty sure (not 100% though..) that he was just a nutter with his own agenda.
At one stage I even thought he might have known the killer of Joe's brother and was systematically getting rid of anyone that could testify, but that was not the case either.. I think it is meant to be ambiguous... British Films are rarely neat and tidy at the end :)

I thought he was just a figment of his imagination or another persona he had developed after the brother's death, throughout most of the movie.

BUT..didn't you see the fake photo Piggy had in his drawer?
The one where he had taped together a picture of himself and a picture of John?
The one he had used to put together a photo to fool Joe to think Piggy and his brother knew each other?
If he wasn't real I would suspect that the photo either consisted of only the brother, or of the brothers together (as to say the picture were never of Piggy and the brother, but himself and the brother..)
But it wasn't.. So I'm not so sure Piggy was just in his mind..

Uhh fight club wasn't the first movie to do something like that.

It's a common theme for movies these days, the part that throws people are the delusional scenes where they show scenes from the lead's perception only. Thus it sparks the evidence theory about the other phantom person's involvement that is shown. It's similar to a 90 minute dream scene with 2-3 minutes of truth that leaves many viewers with the WTF feeling as they think about what they have just seen(even though it's totally unreliable). I admit, Fight Club patented this & imo no more films should be made with that theme because they will always be considered sub-par & or rip-offs to the "original"


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A film is always open to interpretation but there's usually a preferred reading of a film and this film was no exception to that general rule. The whole film is littered with evidence to support the view that Piggy is a creation of Joe's mind. A character created by Joe to help Joe deal with his feelings of guilt over his brother's murder, his attraction to his brother's girlfriend and his desire for revenge.
If we think that Piggy was a real person and not Joe's creation, why was the first of the pair's victims the mugger who took Joe's wallet previously? Piggy would not have known anything about this person as the mugger was not connected to Joe's brother's death and Piggy's arrival on the scene was to avenge Joe's brother's death. I think this was Joe's way of 'testing the water' in order to prepare for the revenge mission to kill the five murderers of his brother. Why would Piggy help Joe beat up the mugger if it wasn't to help Joe prepare for a more brutal form of violence towards his brother's killers?