Movie Idea: "Bundle of Joy"

Debra Messing and Garth Brooks star as a middle-aged couple who want nothing more than to have a child. After years of trying (and cashing out their retirement accounts on fertility treatments), Debra finally becomes pregnant. The couple is overjoyed.
 
Before the baby is born, the couple is showered with gifts to celebrate the good news. But after the baby is born - well, what do you know? - raising a baby is a lot of tiring, frustrating work.

Garth is mad because he can't get a good night's sleep. Garth and Debra start fighting and realize that the stress of parenting is tearing them apart. Debra is mad because Garth won't change diapers. Garth complains that Debra has "let herself go" physically. Debra yells nasty insults at Garth, and they have no desire to be intimate with each other. Garth says he's attracted to Debra's sister. Debra says that she has a crush on the local yoga instructor.
 
Eventually, Garth wants a divorce, but he also wants the upper-hand in divorce proceedings.
 
Garth decides to take a desperate gamble. He starts to deny that he's the baby's father ("The baby's ears are too small and his left pinky finger is oddly shaped"). He demands a DNA test. It's not going to be on TV - it's just a DNA test at the local doctor's office. His plan is to bribe the doctor (Maury Povich) to switch the sample so that he doesn't come back as the father. Then he can leave Debra.
 
Debra is not happy about taking this DNA test, but Garth threatens to post a video on YouTube of her using recreational drugs if she doesn't take the test. At the doctor's office, Garth has a change of heart and decides to come clean about his scheme. He is about to spill the beans when Debra pulls out a shocker - Garth actually isn't the father, but a younger man (played by Zac Efron) is.
 
When Garth hears this news, he realizes that both he and Debra have been in the wrong. The DNA test is cancelled, and Garth decides he wants to be the father anyway.
 
"Let's go home and be a family," Garth says.
 
In the final scene, the child is now 13 years old. He's in front of a judge (Chaz Bono) and being sentenced to juvenile hall for spray-painting hateful messages on the side of the local middle school.
 
Debra and Garth decide to go forward with the divorce anyway.