Former Jezebel editor Jessica Grose writes on Slate that after seeing the movie she found the date rape scene to be:

... just another stomach-turning plot point in a movie consisting of several similarly revolting scenes. If you are to take the film and its characters seriously, which perhaps is beside the point, Rogen's cop not only sexually assaults Faris but basically stalks her, and the movie ends with him publicly slut-shaming her.

As Jessica points out, in an interview with the Onion's A.V. Club director Jody Hill said he thinks the scene would have been even funnier if he left out the line some have construed to mean that Faris's Brandi consents to the sex (even though she's passed out):

AVC: In the Times piece, they describe the scene you're talking about as Seth Rogen's character forcing himself on Anna Faris. Is that how you perceived that scene?

JH: [Pause.] I dunno. I've always kind of liked scenes that you talk about how fucked-up they are. I would have been happy without any dialogue in that scene. I wanted to show them just having sex and her passed out, and I thought that would have been funnier. But I think I have a darker sense of humor than most people. So at the end, [Faris' character] is okay with it. [Laughs.] And that was like, "I'll shoot it both ways." So I actually shot it both ways. I just kept the camera rolling. There's like a line that's "We're okay laughing, and you're pushing the envelope." But you're not really pushing the envelope until you cross that line where a lot of people don't go along with you.

Hill goes on to praise Seth Rogen for standing up to the studio when they wanted to tone down the many disturbing scenes in the film, saying Rogen "really is a fighter for what he believes in." In a separate A.V. Club interview with Anna Faris, it seems that she wasn't as happy with the rape scene as Hill and Rogen, and actually assumed it wouldn't make it to theaters:

AVC: What did you think of the script for Observe And Report when you read it? Did you have a sense of how dark and tonally edgy it would end up being?

AF: Honestly, I didn't have a very good sense at all. [Laughs.] I mean, I read the script and I auditioned for it. I had to fight a little bit for the role, and I wanted to be a part of it so badly. I had seen Jody Hill's Foot Fist Way and loved it. Danny McBride, I loved. The unapologetic nature of Jody's comedy was so appealing to me, and I really wanted be part of it. I'm so grateful I was cast, but when I read the script, I thought, "Well, this is Warner Brothers. This is a studio movie, so this is all gonna be softened up. It's a comedy, right?" So when we were shooting it, even the date-rape scene-or as I refer to it, "The Tender Love-Making Scene"-I just thought, "We'll shoot it, but it's not gonna be in the movie. I don't have to worry about that one." And yet there it is.

Faris adds that she wanted to do the film because Brandi was so awful, since apparently she's having a hard time finding studio films featuring stupid, slutty female characters. She explains:

[Brandi's] really vain, she's really bitchy, and I always imagined she was incredibly stupid, too, but it was just a joy and delight to play her. It's not often you get to be that naughty. It was wonderfully shocking. I read a script where the lead female is so awful, and I was like, "This could not be a studio movie." So it was just a joy.

Blogger Majikthise explains that in the film Brandi's character, not just the one line she mumbles while drunk, are used to justify the rape. She writes:

[Hill] also makes Brandi's character so shallow, manipulative, drug addled, and "slutty" that the target demographic feels she deserves what she gets. Brandi's character is noteworthy because she [has] no redeeming characteristics whatsoever. Even Ronnie has his good points, like his tenderness towards his falling-down drunk mom, and his refusal to steal from his employer, and his heartfelt thirst for justice. I defy anyone who has seen O&R to cite an example of a good, or even neutral, characteristic of Brandi.

So it seems the early reviews were right: The rape isn't so bad when viewed in context, but only because Brandi is treated horribly throughout the film. Hill didn't intend for anyone to mull whether the sex was consensual or not, he just flippantly tossed the date rape in the film in an attempt to get some laughs.

Observe And Revolt [Slate]
Jody Hill Interview [The A.V. Club]
Review: Observe and Report [Majikthise]

Earlier: Is Date Rape Funny? Seth Rogen Explains It All For You
Critics Observe and Report: Seth Rogen's Dark Comedy Is Disturbing

You wouldn't know it from watching the commercials playing constantly on TV, but in Observe & Report Ronnie (Seth Rogen) date rapes Brandi (Anna Faris) after taking her out to dinner, and today, bloggers are talking about it. This is how The New York Times review describes the scene, which you can watch in the final 20 seconds of the trailer above:

In another scene [Rogen] forces himself on a makeup-counter saleswoman after a date of heavy drinking and drug use. (Before the scene is over she indicates that she had given her consent.)

In the scene, Brandi has thrown up on herself and appears to be totally unconscious as Ronnie is pumping away on top of her. He stops for a second, and then she murmurs the line that The New York Times says indicates her consent, "Did I tell you to stop, motherfucker?" before passing out again.

Dan Kois writes on New York Magazine's Vulture blog:

The movie doesn't mitigate that sex scene at all. In fact, it makes it even more clear than the trailer does that when Brandi and Ronnie get home from dinner, she's unbelievably trashed on antidepressants and tequila. Not only does she throw up all over the place, she can barely walk - and she certainly can't give any kind of informed consent. She's way too wasted for her yelling at Ronnie to mean anything.

But Kois doesn't get is that it's a dark comedy. People are so disturbed by rape that the fact that Brandi is too out of it to give any kind of consent what makes the scene so hilarious. Anna Faris told New York Magazine, "It's like date rape - that's funny, right?" Seth Rogen agrees in this interview posted by the Washington City Paper. He says:

SETH ROGEN: When we're having sex and she's unconscious like you can literally feel the audience thinking, like, how the fuck are they going to make this okay? Like, what can possibly be said or done that I'm not going to walk out of the movie theater in the next thirty seconds? . . . And then she says, like, the one thing that makes it all okay:
BRANDI: "Why are you stopping, motherfucker?"

Rogen explains that everyone in the theater then lets out a good long chuckle. See, even though she's probably blacked out and has no idea what she's saying, it isn't rape. (And Brandi's kind of a dumb slut anyway.) In the beginning of the trailer, a flasher is exposing himself to women in the mall parking lot and it looks like he's masturbating in front of Brandi. In this interview Anna Faris says:

It is the most traumatic event that's ever happened to her, which is funny because I always imagined that she's seen a bit of male anatomy and it wouldn't normally scare her.

Women who have many sex partners obviously love penis, so they'd welcome a stranger jerking off in front of them on their way to work.

And if you aren't already laughing at the idea of a pervert exposing himself to women and someone getting date raped, Sady points out on her blog Tiger Beatdown (via Shakesville) that the film will be even more entertaining for women with history of sexual assault. Sady writes:

"The incredible frequency of rape and sexual assault in our society means that many, many victims of rape will see [the movie], and the PTSD that often accompanies rape will mean that, for a joke, for some dipshit filmmaker's attempt at being edgy, they are going to experience all of the pain and psychological trauma associated with that experience, they are going to feel that rape all over again, there, in their seats, in the theater, and they are going to pay for the experience, and if they try to talk about what that filmmaker did to them it's probably going to get sidetracked into some conversation about the Sanctity of Art which is invariably given more consideration than their actual lives."

An Auteur of Awkward Strikes Again [The New York Times]
Does Seth Rogen Rape Anna Faris in Observe & Report? [New York Magazine]
Observe and Report's Date Rape Apologism [Washington City Paper]
Um. [Tiger Beatdown]
Quote of the Day [Shakesville]