Further details are emerging about the big screen movie on JC Chasez, Lance Bass, Joey Fatone, Chris Kirkpatrick and Justin Timberlake — who are collectively known as *NSYNC — though not THAT many details are known. What was revealed in Los Angeles yesterday is that they won’t be playing themselves in the new movie, whose plot and title will not be revealed until a May 14 news conference at the Cannes Film Festival. The film will begin shooting next year, said Gerald Green, chairman and CEO of Total Film Group, which is producing the film with Phat Free Productions. The record-breaking group (whose recent release, “No Strings Attached,” sold the most copies ever in a single day and the most of any album in its first week of release), previously announced a film project they intend to make with Tom Hanks’s production company. This still appears to be on track.