IMAX CEO says 'The Odyssey' box office is 'more extreme' that expected. He also addresses whether the company is for sale.

"The Odyssey." Melinda Sue Gordon/Universal Pictures "The Odyssey" had a massive opening weekend in theaters, taking in $264.1 million globally. Over 20% of sales came from IMAX tickets. IMAX CEO Rich Gelfold spoke to Business Insider about the company's recent successes. Christopher Nolan's latest epic, "The Odyssey," had an opening weekend at the box office worthy of the gods. The movie, based on the centuries-old poem by Homer, took in the third-best domestic opening of the year with…