One question the film doesn't really explore is that of the second attacker's existence. Everyone, except Leonard, reportedly believed it was a case of a single attacker, but we're led to believe they were all wrong. The thing is, there's very little evidence to back this up (and most of it's highly suspect); there's only Leonard's memory and Teddy's testimony. Leonard's recollection of events has been called into conjecture by all those involved, with the evidence in the bathroom pointing towards a lone attacker. As he can manipulate events in his mind from both before and after the attack (Sammy having a wife and his own having diabetes), there's a big question mark over whether we can believe this. Teddy's account, with him brandishing a polaroid of a victorious Leonard, suggests that in his mind there was an attacker, although this is far from an unbiased account. We know Teddy/Gammel has been using Leonard to bump off various John G's, with the addendum to one of Leonard's facts suggesting he could be called Jimmy likely influenced by Teddy; what if the manipulation reaches further back than Leonard knows. If this is true this pushes the notions of memory and conditioning to even more extreme lengths; Leonard is completely living in a fantasy. Do you have any theories about the end of Memento? Which film would you like us to look at next?