The ending underwhelms slightly, though 'One Hour Photo' is still worth a watch.
As great as Robin Williams' comedy is, I like the idea of seeing the guy act more serious - and he certainly did so in this 2002 release! The film starts are very strongly, I really enjoyed the vibe that was building. Williams plays a creepy character very well, while the rest of the cast - namely Connie Nielsen - support ably.
The movie does a drag a tiny bit the longer it goes on, despite only having a run time of around 90 minutes, and the conclusion didn't have as much of an impact as it should've. Still, I definitely got enough out of this one thanks to some good atmosphere building and a competent Williams performance.