General atmosphere during an IMAX private screening for the movie "First Man" at an AMC theater in New York City on Oct. 10, 2018.An "embarrassment of riches" at the box office could fuel a $1.2 billion year for IMAX, CEO Rich Gelfond told CNBC on Friday.That volume would mark the best box office haul for the company, which specializes in high-resolution cameras, film formats, projectors and theaters."I think it's going to be a very strong year," Gelfond said in an interview with CNBC's "Squawk on the Stree ...