Juno/YMMV

Alternative Character Interpretation: Are Mark's actions that of a selfish Man Child or a Henpecked Husband freeing himself to go on his own pursuits?
- Likewise is Vanessa really just a tragic woman who wants to be a mother or really a manipulative Jerkass who quashes her husband's wishes for her own desires? Or is she just flawed?
Non Sequitur Scene: Mark shows Juno what appears to be hentai, featuring a pregnant girl. Um...
Brain Bleach: Oh, GOD. Those PORK SWORDS!!!
Family-Unfriendly Aesop - Teen pregnancy is one wacky adventure, not a process that can completely ruin your life!
- A common complaint from news channel pundits and media commentators was that the film not only promoted the idea that a teenage pregnancy is a blast, but that if it's realized that it would be too difficult to raise a child while the mother is at such a young age, a baby can be swiftly adopted by more mature people who have the financial security and free time to raise a child—not exactly a realistic scenario for most young girls with unplanned pregnancies. Diablo Cody defended the film, pointing out that it would be a much shorter story if Juno had gone ahead with the abortion.
Fridge Brilliance: The sounds of scratching, tapping and picking of fingernails in the clinic builds up to sound like a foetal heartbeat.
Genius Bonus - While the movie mentions that Juno's named after the Roman goddess Juno, it doesn't mention that one of the main domains of said goddess is childbirth.
Hilarious in Hindsight: Juno saying “That’s what you think” to the parents about the baby’s gender is funnier now that Elliot Page came out as transgender.
Hype Aversion
It's Popular, Now It Sucks
No Yay - Mark and Juno, when they dance together.
Scare'Em Straight - This movie is arguably a cautionary tale against teen pregnancy.