What is the Harrison Ford movie where he a scientist?

You're likely thinking of "Blade Runner" (1982), where Harrison Ford plays Rick Deckard, a blade runner tasked with hunting down rogue androids called "replicants." While not a traditional scientist, Deckard does use scientific methods and technology to perform his job, making him a sort of "scientific detective."

There are a few other films where Harrison Ford plays characters with a scientific background, but they are less prominent. For example:

* "The Mosquito Coast" (1986) - Ford plays Allie Fox, an inventor and self-proclaimed genius who moves his family to the Mosquito Coast of Honduras in search of a better life.

* "Air Force One" (1997) - While not a scientist, President James Marshall (played by Ford) demonstrates knowledge of military technology and strategy.

Do you have any other details about the movie you're looking for? This might help narrow it down!