Back in 2006, actually, while filming Blood Diamond, but he just now got around to using the anecdote for a promotional appearance. It starts around the 2:45 mark in this Ellen video, but — can we be honest? — Leo's dramatic shark storytelling could use a little work. There's something about a tuna? "It chomped a few times." Why isn't he screaming more? Or yelling about pink slips? You were trapped in a cage with a shark. Make us feel it.