“The Odyssey” (2026) (Universal Pictures) By MARC TRACY and GUS ARONSON This was the summer that buying movie tickets became like buying concert tickets. Moviegoers crashed websites to secure premium admission to one of a few dozen theaters in the world that can screen films in the coveted 70-mm IMAX format. The movie that inspired this was “The Odyssey,” director Christopher Nolan’s adaptation of the ancient Greek epic that become a rare monoculture moment and has made more than $1.6 billion…