The 2010 film "TRON: LEGACY", references the same "Flynn's Arcade" as the
original 1982 film, "TRON".  It's owned by Jeff Bridges' character, Kevin Flynn,
and it's where both he and his son (in the sequel) get sucked into the game.

That distinctive building is real.

It can be found 9543 Culver Blvd., in Culver City, CA,
at the corner of Culver/Washington Blvd & Watseka Avenue.

And it hasn't changed much. Here's a photo I shot in late 2010:

In the original film, they filmed the actual building and its natural surroundings. In the sequel,
they rendered the same building digitally, but changed the surrounding neighborhood.

The building currently houses a restaurant named "Akasha"
(so you diehard "Tron" fans can actually have lunch in Flynn's Arcade...)

It's just west of the historic MGM Studio (now Sony Studio)

In the 2010 film sequel "IRON MAN 2", 'Nick Fury' finds 'Tony Stark' (Robert Downey Jr.)
perched inside a giant donut (atop a donut shop), recovering from a hangover.

That scene was shot inside the giant donut atop Randy's Donuts,
at 805 W. Manchester Blvd, just west of the 405 Freeway, in Inglewood, CA.