Is IMAX better than 1080p? what resolution are they film?

[WickyWoo]

Nobody even shoots feature films in 65mm anymore, much less IMAX. The theatrical run is just a commercial for the home video sales. Every feature film you see in IMAX is a blow-up from a 35mm or digital source. The cameras are far too unwieldy, the lens selection too limited, and the film stock too expensive for anything other than short documentary features. In fact, IMAX's large negative size even makes it impractical for shooting special effects plates. 65mm or Vistavision (yes, the cameras still exist) is occasionally used for this, but generally Super35 is the format of choice for such chores.

Christopher Nolan specifically requested to shoot Dark Knight in IMAX. They wouldn't let him, due to the money,but they did allow him to shoot 6 scenes IMAX.

I accept your points on the difficulties of IMAX. I would welcome 65mm photography as well

Vistavision is an excellent format.