Online ticket sellers Fandango may be reporting that The Great Gatsby is driving 65 percent of its weekend ticket sales, but box-office forecasters figure that it won't come close to unseating Iron Man 3 from the No. 1 position when all sales are counted. Iron Man 3 opened with $174.1 million last weekend, making it the second-highest debut ever recorded (behind last year's The Avengers with $207.4 million). Most analysts are predicting a 60-percent fall in its second weekend -- putting it at around $70 million. Gatsby, based on F. Scott Fitzgerald's novel set in the Roaring Twenties, they say, will be lucky to take in about $40 million. That would still be considered a solid outcome, especially given the controversial nature of any Baz Luhrmann production, the mixed reviews, and the fact that it is based on a staple of the literary canon. Originally scheduled to be released late last year in order to put it into contention for Oscar contention, it was bumped to the early summer season (and coincidentally Mothers Day weekend) to allow writer/director Luhrmann additional time to fine-tune the production. (Literally, it would seem. He said that at the last minute he had discussed the soundtrack with rapper Jay-Z and was impressed by his vision for it.) It is currently being marketed not as a prestige studio release but as a glitzy summer popcorn flick -- and, judging from the Fandango report, ticket sales will turn out to be the cat's meow.