. >> reporter: later this year the leading man will star in the christopher nolan film "interstellar" is just heating up. >> i'm 12i8 on the approach. >> reporter: the business of being matthew mcconaughey is -- >> all right, all right, all right. >> tomorrow night's episode will be mcconaughey's last. he says if there's a season two, whoent be in it. thanks for spending your saturday smart with us on "your money." have a great weekend. "cnn newsroom" starts right now. \s >>> hello, everyone. i'm fredricka whitfield. the top stories we're following in the "cnn newsroom." >>> rescue crews are scouring the south china sea right now looking for any signs of malaysia airlines flight 370 after the jetliner vanished about 26 hours ago. this is new video of the search operations. the biggest clue to the plane's whereabouts. traces of oil in waters over the search area spotted by a vietnamese aircraft. officials say the oil slicks are between six and nine miles long. the bol eing 777