5/5 Details on the different versions of this DVD release
  by Bretzky (Portland, OR)
Loved the movie. That said, I was confused on what the differences were on the 3 DVD versions, but found some details that I've posted below. As for me, I'm going with this two-disc unrated version.

Basic extras -- available on all (both R-rated and Unrated Editions):

- Deleted and Extended Scenes
- Gag Reel
-"Directing the Director" (Capote director Bennett Miller stops by to help Apatow get the job done)
- Line-O-Rama (Tons of alternate takes)
- Audio commentary with Judd Apatow, Seth Rogen and Bill Hader
- Roller Coaster Featurette

Goodies available only on the Unrated releases:

- MORE Deleted and Extended Scenes (some pretty raunchy ones, reportedly)
- Topless Scene: "Web Design"

And finally, extras available only on this 2-disc Unrated version:

- Judd Apatow's Video Diaries
- Finding Ben Stone (A mock casting session)
- Stripper Confidential (Rogen and Paul Rudd wade through some Sin City salaciousness)
- Even MORE Deleted and Extended Scenes / Gag Reel Footage!
- Another topless Scene: "Restaurant"
- Katherine Heigl's Audition Tape
.. "and more" (I'm really hoping for another "You know how I know you're gay?" extended scene like in 40-year-old Virgin)

4/5 Great movie, good disc (blu-ray) review
  by Brett (Memphis, TN)
The movie is great. If you haven't seen it, I'd highly recommend it. This one is directed by Apatow himself; so, you you know it's one of the better ones that carries his "brand"...unlike some of those cheeseball movies with Will Ferrel. More to the point, you get the sense that he made this movie for himself or his family. For example, his wife in real life is Leslie Mann, and his daughters play his and Leslie's daughters in the movie. But enough about a review of the content...I assume that if you're considering the Blu-Ray release of Knocked Up, you've seen the movie before.

I don't know about you, but when I am considering purchasing a Blu-Ray, what I want to know is (in order of importance) 1) How good does it look? 2) How good does it sound? 3) What special features distinguish it from the DVD version that I might possibly own already. The picture quality is good but not amazing. I have yet to find a BD that has worse picture quality than its DVD counterpart, but we're not expecting minor improvements from the BD. Considering a dual layer BD can hold 50 GB compared to a DVD-9 that can hold 8.5 GB, we expect A LOT more from Blu-Ray...and rightfully so! The audio is fine, but my expectations for a comedy are much lower as I tend to be more interested in content than technical achievements and fidelity; whereas, action movies force me to be a more discerning critic. That said, I don't find anything particularly impressive or irritating about the audio on this disc.

Lastly, the special features are good but nothing, IMO, that warrants buying this disc if you already own the DVD. Again, if you're like me, you're only going to watch the special features so many times. The audio and video quality of the main title are what I am most interested in, and I am unwilling to pay $20 for the BD version at this time. If Amazon takes it down to $15, I'll take the plunge but not before.

4/5 One of the Highest rated films of 2007 comes to dvd/hd dvd Septermber 25th. Features for those dvds below.
  by Mike Liddell (Massachusetts)
Director Judd Apatow makes another R rated comedy with a heart. He makes characters that are real and we can relate to with raunchy humor, however he slyly wraps it up with a message about responsibility as he did in 40 Year Old Virgin with celibacy.
A hilarious, real, and ultimately touching film with a message and one of the best of 2007.

This is one of the highest rated films of the year it earned a 91% positive rating out of 177 critics reviews.

Heres info I found on the dvd on movieweb:

According to The Digital Bits, Judd Apatow's box office smash Knocked Up is going to be coming to DVD in 4 different versions on September 25 from Universal Studios Home Entertainment.

There is going to be an "R-rated widescreen, Unrated (and Unprotected) widescreen and Full Frame (that will sell for $29.98 each) and a 2-disc special edition in Unrated (and Unprotected) widescreen (that will sell for $30.98), as well as an DVD/HD-DVD Combo version of the Unrated edition (that will sell for $39.98)."

DVD Features:
- Audio commentary with writer/director Judd Apatow, executive producer/star Seth Rogen and actor Bill Hader
- Deleted scenes
- Extended and alternate scenes
- Gag reel
- "Line-O-Rama" Featurette
- "Roller Coaster Doc" Featurette
- "Directing the Director" Featurette
- "Topless Scene: Wed Design Company" Featurette
- Loudon Wainwright III music video
- Picture in Picture video during the film (HD version only)

5/5 Knocked Up
  by Judie (Canada)
HILARIOUS!! I was itching for this to arrive in the mail!! I saw this twice in the theater and wasn't disappointed with the DVD. I chose the original theater version because it is what I fell in love with and din't want it altered. I'd be curious to see the additional footage though. At first I thought this was going to be another stupid movie, but I was SO wrong!

5/5 Real fun movie and great on blu ray
  by barry (Boston, MA United States)
Writer/director Judd Apetow is building his own franchise and making a real name for himself with his high quality comedies with his unique special brand of humor and great casting. SUPERBAD does seem to be the most popular thus far but KNOCKED UP is in the same league for me.

Story line is pretty basic. We have an average stoner guy and a beautiful professional woman who meet at a bar, get drunk, have sex and she gets pregnant. In real life such different types of people may not try to make a relationship work but here it is very believable and the development of each character about life, love and acceptance is very realistic as the pregnancy develops. Katherine Heigl and Seth Rogen are in top form as their lives are forever altered. Dialogue is funny, circumstances are realistic and having the marriage of Heigl's sister to compare with works great. Paul Rudd shines here and steals all the scenes he is in.

This is a bawdy comedy but manages to put across positive messages about safe sex, responsibility and the fact that relationships can be difficult. It is not a message film by any means but it manages to spread a good positive vein about life and its complications.

Blu ray usually is put to its best use with action films or films with great cinematography which show how the 1080p can be brilliant and how audio can transcend. Comedies can sometimes appear bland on blu ray but this film is crisp, colors are vibrant and video and audio are both at levels above that of the regular dvd. There is much talk of this movie being too long. For me it was not. You will either love it or you won't. For me it had a purpose in the length and the character development also warranted it.

I highly recommend the blu ray version of this film as well as the film itself.