The movies was about a doctor who was accused of killing his wife, and went to jail but on the way to the jail he was on a bus with other people, and the bus crashed and they all tried to get out and the doctor got out helping a cop then he was hideing out and found out who killed his wife.

The Fugitive (http://www.imdb.com/title/tt0106977/)

Indeed 'The Fugitive' is the movie. It stars Harrison Ford and Tommy Lee Jones. Did you also know that Tommy Lee Jones (the U.S. Marshall) played the fugitive in the original series? Great movie!