The Dream Team (1989)

Four mental patients on a field trip in New York City must save their caring chaperone, who ends up being taken to a hospital in a coma after accidentally witnessing a murder, before the killers can find him and finish the job.

Director: Howard Zieff

Cast: Michael Keaton, Christopher Lloyd, Peter Boyle, Stephen Furst, Dennis Boutsikaris, Lorraine Bracco, Milo O'Shea, Philip Bosco