Looks funny but the plot it such a strech that it just looks like it might be kind of lame IMO. Probably rent it unless I hear from people it's worth going to.
I was looking foreward to seeing this when I first saw the preview, but I saw another one last night at the movies and they basically gave away the whole movie, and I was not too impressed.
I saw the extended preview of Evan Almighty before Knocked Up last night and I have to say this movie looks like a big letdown. I was mildly interested at first but not now.