The script is well written and the storyline is intriguing. I am usually not really keen on romantic films due to its unrealistic rendition of relationship. And even though this film is not really realistic too (in terms of Ruby Sparks herself), I must say that this is my favorite romantic comedy film ever.
This feels like a cross between (500) Days of Summer and what I'm pretty sure Her is going to be. Zoe Kazan is a doll and Bening and Banderas were great in their supporting roles. Ruby Sparks felt like it lost something in the last act but overall not bad.
"...And the thing we do to each other, where we try to box around the other person - because loving someone with a free will is terrifying. So we try to bring them down to size, so that they're digestible, and so they're not so frightening to us..." (http://tiny.cc/et2yhw)
It has a lot going for it. The idea itself I think is brilliant. Reminds me of something like Solaris. And like someone below said, the second act was really effective. The first half was OK too, albeit a bit slow. The last third of the movie felt like a different movie altogether, and that ending was just sloppy; everything that came before that -- the movie, it didn't earn that kind of ending. Such a shame.
Here's an inspired idea that could've been great fun but is ruined by the dead serious execution. Sure, there are actual good scenes that function like a screwball comedy but the overall package can't save itself from the poor writing. Sorry, Zoe. Stick to acting. You could almost say this is The Raven of Indie movies this year.
Glad to see this deconstruction of the Manic Pixie, whether it was Kazan's intention or not. Although it made me laugh a lot, I do not consider this a "romantic comedy" because all of the romance is essentially constructed by Dano's character, who I found annoying and sexist. I had no sympathy for him. I really liked this movie but HATED the ending. Zoe Kazan's performance is perfect; she is a terrific actress!