About Alex is mainly just two hours too many to spend with characters who aren't compelling and generally act like selfish jerks. Our title character is pushed to the background and probably has the least lines of anyone. It's almost hilarious how swept aside and incidental the character Alex is in a movie called "About Alex." One gets the impression that we're meant to feel bad for him, but he's still more of a plot device than a person with a complex, nuanced personality. Most of the film dwells on the ridiculous neuroses of the other characters, which lack authenticity or originality of any kind. Drama that would be better suited to a TV sitcom than a feature length movie. Yes, the fumbling discomfort of the characters as they try to deal with Alex's attempt is something we can all sympathize with, but this is the beginning and the end of my emotional participation in this story.
I have a major weakness for quirky suicide movies, but it's so important for the audience to feel something for this to work at all as the basis for a movie. Suicide is a serious subject, which About Alex seems to grasp. Although the act itself is sensationalized, it is treated with some reverence. Looking at suicide through a bizarre filter can make it easier to break down, accept, understand, but I think a strong connection between the audience and the victim is key for this to work.
Overall, About Alex is pseudo-philosophical, tepid and boring. It doesn't hit the right notes emotionally and it's simply not warm enough, intimate enough, close enough. A film with a similar premise, which although not perfect itself, comes nearer to accomplishing what About Alex seems to be striving for, is A Beautiful Now. My advice is to avoid About Alex like the plague, and check that out instead; at least A Beautiful Now is interesting.