The line once clearly drawn between television and film has been blurred. Diane Keaton was in The Young Pope. Nicole Kidman won an Emmy for Big Little Lies. George Clooney is about to be in a Hulu show! And now Robert De Niro joins the ranks on the small screen. (Don't bring up Wizard of Lies.) The prolific actor, best known for appearing in some of the most iconic films in cinema history, is now starring in a commercial for British bagels.