It's hard to believe it's been more than 25 years since "Arnold Schwarzenegger's reputation as one of the great Hollywood badasses.

In honor of the film returning to theaters this week in a shiny, new 3D release, here are 11 things you need to know about one of the James Cameron!

1. Robert Patrick wasn't actually the first choice to portray the T-1000.

Cameron originally had his eyes on musician Billy Idol, but Idol had to drop out after having a motorcycle accident.

2. Cameron also reportedly mulled over the idea of casting "Predator." Neither character had time to bleed.
10. While the original "Terminator" was a decent box office success in 1984, this sequel managed to top that gross in its first two days of release. The film went on to become the highest-grossing movie of 1991. (At the time, it was also the most expensive movie ever made.)
11. The "Terminator 2" Blu-ray includes an alternate ending that showcases the happy, Terminator-free future that the Connors created by defeating Skynet. But as the sequels have shown us, that future never came to .