I rented this film and watched it with my wife. I wasn't expecting too much (it's a rom-com and I'm not too big on those)...
I found the movie funny, refreshing and insightful. In fact, I found it so enjoyable I will definitely buy it after watching it twice. It's odd - I've subsequently read all the other reviews (nearly uniformly poor), I've seen the terrible ratings on the movie review sites. Perhaps this is because this movie doesn't fit the mould of a a standard romantic comedy; this is different, more real and edgier with a fairly unusual central character who isn't soppy in the least. and the male leads are unusual and a bit "left of field". It is very quirky and for the first 10 minutes or so I felt lost. However, I soon "got it" and settled in...
Basically, this concerns a 30 year old female olympian softballer (witherspoon) who has come to the end of her athletic career in a terribly insensitive way. She has casually hooked up with a narcissistic, but fun male professional baseballer (wilson). At around the same time, she meets the CEO of a company (Rudd) who has been indicted on securities fraud and has been cast into the pit by his manipulating father (Nicholson). Wilson represents Witherspoon's optimistic, athletic side, the other represents her resilience despite setbacks. One is her "before", the other is her "after".
I found the dialog and unusual reactions incredibly interesting and often funny. The movie isn't melodramatic or overly romantic, but the core is sweet - how do you know whether someone is right for you or not? I really enjoyed it.