A Hollywood legend one of my last screen appearances was being ambushed by Michael Moore at my home............who i it?

The Hollywood legend you are referring to is likely Marlon Brando. In one of his last screen appearances, he was famously ambushed by filmmaker Michael Moore in the documentary "Bowling for Columbine," where Moore sought Brando's opinion on gun violence and other social issues. Brando's participation in the film highlighted his willingness to engage in political discourse, even in his later years.