"Making Of Batman" Preview Video 1988

"1989's Batman turns 25 today, and it's obvious by now that it laid the groundwork for the comic book movie boom of the last two decades. However, back in its day, the movie was very much a hard sell, and there was no guarantee that it would even reach theaters. So in 1988, the studio had to create a 20-minute behind-the-scenes introspective to demonstrate to investors that this then-new take on the Caped Crusader could prove its worth in the market." -reported The Verge.