The U.S. Supreme Court on Tuesday struggled with whether a person’s unreasonable delay in filing a copyright infringement action can be used to bar that lawsuit.

The justices heard arguments in Petrella v. Metro-Goldwyn-Mayer, a case stemming from a dispute over the rights to “Raging Bull,” the 1980 Martin Scorsese film based on the life of World Middle Weight Champion Jake LaMotta.