'The Switch' Cheat Sheet: Everything You Need To Know

Don't get mixed up: Check out all our fun facts about the Jennifer Aniston/ Jason Bateman romantic comedy.

In case you've missed all the talk of bodily fluids and "basting" around MTV News this week, we've been gearing up for Jennifer Aniston and Jason Bateman's new romantic comedy, "The Switch," which opened Friday (August 20).

In brief, the story revolves around BFFs Wally (Bateman) and Kassie (Aniston). One day, Kassie informs Wally that she's ready to have a baby via a sperm donor, and Wally is surprised, to say the least. Kassie moves on with her plan, enlists a donor whom she dubs "the Viking," played by Patrick Wilson, and Wally manages to crash the scene and mess up the donation and ends up replacing it with his own. Kassie moves away to have the baby, and no one figures out the switch until many years later.

We've been following the film from its humble beginnings, cast additions, title changes, trailers, etc. Here is everything you need to know about "The Switch"!

The Aniston/Bateman team-up was initially announced as "The Baster" in February 2009, a title that raised a few eyebrows.

When our Hollywood Crush caught up with screenwriter Allan Loeb to discuss the film just two weeks later, the studio's marketing department had already set the wheels in motion to change the title.

"As a movie title, it doesn't seem to be as exciting to the powers that be that are going to have to market it," Loeb explained to MTV News. "So the title will change.

"I can tell you that the movie is wonderful," he added. "I am very proud of it and very happy with it. ... Fans of Jason Bateman and Jennifer are going to be very happy and very excited to see their performances in this picture." Loeb went on to compare the Aniston/Bateman chemistry in the film to that of "When Harry Met Sally."

"The chemistry between them isn't as much they're going to rip each others' clothes off and you want to see them go to town on each other. It's much more 'Harry Met Sally,' " Loeb explained. "It's much more fun. It's a lot of good banter, if I do say so myself, as I wrote it. But it's a lot of good banter, and it's real shorthand between them."

Earlier this year, the first trailer debuted, along with the film's new title. Hollywood Crush awarded points to the studio's marketing team for not revealing the entire plot of the film, as trailers sometimes do.

After the trailer and new title dropped, news about the film was almost nil for several months. A couple of weeks ago, a new clip was released, and at that point, it was time for us to attend the film's press day, during which we learned a lot about the "basting" process and a bonus fact from Aniston: she's "obsessed" with MTV's own "Warren the Ape."

Last but most certainly not least, MTV News attended the Hollywood premiere, where we posed a very important question to the cast: Which fluid is the sexiest to donate — sperm or blood?

Check out everything we've got on "The Switch."

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