While the final moments don’t quite pack the punch they could have, 'One Hour Photo' is still something you might want to check out. I appreciate seeing Robin Williams in a more dramatic role, and he absolutely delivers that here in this film from 2002! The beginning of the movie was particularly strong; I found myself really drawn into the mood it created. Williams portrays a disturbing personality convincingly, and the other actors—particularly Connie Nielsen—do a solid job alongside him. The film does feel a little slow at times, even though its length is only about 90 minutes, and the ending didn't resonate as much as I’d hoped. Nevertheless, I found it worthwhile because of the effective atmosphere and Williams’ capable performance.

Source on TMDB