“It’s becoming an increasingly flooded marketplace,” said Andrew Dahm, who in May graduated from the Peter Stark producing program at U.S.C. with a master’s degree and an expectation that he would work for two or three years as a low-paid assistant in lieu of the junior executive jobs that were once common.

Film School Graduates’ Job Prospects at U.S.C., N.Y.U., U.C.L.A.