TIL IMAX film is 70mm (2.75 inches) wide, reels can be nearly 2M (6 feet) in diameter and can weigh in excess of 270kg (600 pounds) : r/todayilearned

IMAX - Wikipedia

How much storage would we need, if we wanted to keep an IMAX movie

How Sharp is 15-70mm IMAX Film?

What is IMAX and How It Changed the Way We Watch Movies

IMAX vs 70MM vs Digital which Oppenheimer format was best?

Met Ludwig and got my “Awaken My Love!” vinyl signed! : r/donaldglover

Oppenheimer 70mm 🎥 vs. IMAX vs. Digital Explained

Large format film scanning

See Why DUNE: PART TWO on 70MM IMAX Film is so rare

Oppenheimer' IMAX or 70MM? What Christopher Nolan suggests