Stir together (a) a bunch of people, each with their own trite story, forced together when their escape routes are cut off in a burning high-rise Las Vegas hotel; (b) everything going wrong; (c) lots of smoke and fireballs; (d) lots of screaming, crying, and fear; (e) the obligatory true confessions; (f) confrontations and recriminations; (g) elevators; and (h) lots and lots of pulse-pounding music, and you've got "Trapped" --- or any of numerous slapped-together potboilers that you've already seen.
Did someone say "plot"? Who needs a plot when you've got pervasive bedlam? The few original touches make minimal difference in the end result. Also, with your powers of recall, you can be first on your block to know how these people will escape, Las Vegas style!
Competently put together, with lots of effort spent on special effects, stunts, firemen, and the score, but not much on a good story.