Evidently The I Inside is not due for release in the UK until 2005, but Frightfest in London screened this on 28 August 2004.
This starts off very promising, with Ryan Phillippe's character Simon Cable regaining consciousness in the year 2002 and again in 2000, not entirely sure what he has been doing with his life during the two intervening years. The first couple of "switches" between time-lines succeeded at dis-orientating and jolting the audience admirably, but after some meandering, the "switches" become relatively tedious and gratuitous, and I felt that they did little to further the plot.
The periphery characters all do a sterling job at providing a sense of unease (Piper Perabo is pretty outstanding), but after Simon has "switched" years several times, I found it difficult to retain my attention. By the final denouement, I was past caring, and noticed only with a passing interest that the ending was incredibly similar to another memory-loss psychological thriller from the mid-nineties.
Perhaps I just watched too many films of this sort for my own good? If only I had suffered my own personal memory loss and forget The Butterfly Effect and Jacob's Ladder, then perhaps I would have enjoyed this more.