I found the exact quote from the movie... part of it at least.

"You know, at one time there must've been dozens of companies making buggy whips. And I'll bet the last company around was the one that made the best goddamn buggy whip you ever saw. Now how would you have liked to have been a stockholder in that company? You invested in a business and this business is dead. Lets have the intelligence, lets have the DECENCY to sign the death certificate, collect the insurance, and invest in something with a future."

      -   Lawrence Garfield (Danny DeVito), "Other People's Money."