[3][4] The production company was Millennium Pictures (Detroit), special effects were provided by Flash Film Works, and the scripts were written by Nancy Wellinger and Jim Millis.

Flash Film Works did the special effects, including creating and compositing the Bat-Signal, airbag, the Riddler's skywriting (copying the writing style from Batman Forever) and erasing/covering various shots of the Warner backlot.

They created a digital matte painting of an ice-laden Gotham City, as well as performing some rig and wire removal work on the film.

The Batsuit that was featured in the commercials was not specifically designed or tailored for Bruce Thomas, the actor that played Batman in the ads, who said it was simply made up of "bits and pieces of stunt guy's suits that fit me".

Michael Gough, who portrays Bruce Wayne's butler, Alfred Pennyworth, in the Batman films directed by Tim Burton and Joel Schumacher, reprises his role in the OnStar ads.

OnStar began a $50 million ad campaign in February 2000, although it is unknown precisely how much of that number was set aside to make the Batman commercials.

[8][10] Following on from OnStar's earliest TV ads playing on childhood fears and out-of-car personal testimonials, the company licensed Batman to market its "year 2000 factory-installed version," in the "world's most technological car," referring to the Batmobile.

"[3] Both Bruce Thomas and Curtis Armstrong reprised their roles from the live-action ads, voicing Batman and the Joker respectively in the "webisodes".

As part of the ad-campaign, OnStar and DC offered (from May 31, 2001) an online sweepstakes chance to win "a walk-on role in the next Batman movie," which was then "still in the planning stages," albeit "with no firm dates set yet.