Speed

This is a 1994 blockbuster film. Starring "Keanu Reeves" as Officer Jack Traven, "Dennis Hopper" as Howard Payne with "Sandra Bullock" as Annie Porter.
Jack is a LAPD officer who along with "Jeff Daniels" or Harry ruins the plans of Howard Payne (a retired police officer) to blow up a lift (elevator) in which civilians are stuck. Payne asks for ransom but is supposedly kiiled by his own bomb.
One day near a food joint a vacant bus blows up in front of Jack along with the driver, then Jack gets a call from Payne that a bus has a bomb on it, the bomb gets activated if the bus speed exceed 50 miles/hour and would blow if then the speed lowers 50. The movie then passes into how Jack gets int othe bus and take care of it with the commutors on it, and how some people die.
The scenes at the airport are Great and the ending is not an everyday expected one (the end shoot was massive, guys!!).