25 Things You Didn't Know About Die Hard With A Vengeance

7. ...And Another Would've Involved Terrorists In The L.A. Subway

Once production commenced on Under Siege and made the John and Holly honeymoon script unviable, the producers pursued other options. Before eventually arriving at Hensleigh's Simon Says script, another premise was briefly considered by Bruce Willis and other producers, which would've seen McClane go up against terrorists who had taken control of the Los Angeles subway.

This treatment was developed by writers John Fasano and Doug Richardson, but Willis supposedly rejected the idea.