Ebbie... 'The Towering Inferno'... I watched the "original movie" in a structural engineering class at uni. The fire was started by loose aluminum wire fasteners on an air conditioning unit in an office tower (19th floor I seem to recall). It was horrific but totally accurate. One of my classmates vomited. Kinda sends the message home about what it means to wear an Iron Ring.

Does that movie start out with a shot of a helicopter flying along a river? and then change to a shot of the river valley from the chopper?