Well the title says it all.
I'm going to check it out next month down at BFI Southbank as I happen to be in london.
Not sure I've ever seen a film that long in the cinema.
Should be an interesting watch though. The remaster is meant to be brilliant. The original DoP was consulted. As was Martin Scorcese.
The Leopard | BFI
Scorsese Restores The Leopard and Revives Cannes's Golden Age | Little Gold Men | Vanity Fair