"Serious Moonlight" deserves to be seen for a number of reasons.
First, it is written by the late Adrienne Shelly (best known for "Waitress" (2007)). After her death, her husband set up the Adrienne Shelly Foundation to help women pursue their film-making dreams. Money earned from her films goes towards this foundation.
Second, there are a lot of elements in this film that are pretty original which seems to be a hard feat to accomplish for most films today.
Third, the interesting casting choices, which give us the pleasure of seeing Meg Ryan and Timothy Hutton in mature, grown up roles but acting childishly-stupid with glimmers of maturity and wisdom. After seeing this movie, I believe they are the only actors who could pull it off so beautifully. Add to this, Justin Long in a funny and very surprising role, and then the adorable Kristin Bell who for once is actually playing a character less-accomplished than the average woman her age.
"Serious Moonlight" is a romantic comedy of sorts where we have a husband divorcing his wife so he can be with his younger mistress. Include a couple criminal activities and all plans get thrown out the window. Every turn in this movie is funny, original, thoughtful, and romantic - in its own weird way.
I recommend spending your money on "Serious Moonlight". Rest in Peace, Adrienne.