Now, I'm not quite sure if this is right, because I've only seen the film twice, but I remember it really well. When Bruce gets shot by Vincent Grey (or Vincent Gray) he falls back on the bed, which means that the bed must have been behind him, but before him and his wife even find out their house has been broken into, it shows the bed being in a different position.

Now, Bruce could have turned around when he fell, and everything, and anyway,why would the film producers turn a bed around? I think i've just got it wrong.