Impossible - The Final Reckoning," the thrillingly doom-laden last chapter of the "M:I" series, Tom Cruise does something you expect - he's featured in the kind of elaborate stunt sequence that's become this 30-year-old series' trademark - but he also does something you may not expect.

I would have lost 7 lives mid air 😂 how’s this man doing it like it’s some vid game experience - Kenny HT; Forget CGI. Tom Cruise is the special effect! 🔥 - ninja_yari;

There's little Tom Cruise wouldn't dare to do, and now that includes standing on the top of the UK's biggest cinema screen. The actor was spotted on Sunday afternoon on the roof of London's BFI IMAX building,