The Cup of Noodles museum in Yokohama was well worth it (get there early if plan to go though, can get very busy).
Cup noodle factory: no reservations, draw on your cup, specify what toppings to put in
Chicken ramen factory: make ramen noodles from SCRATCH, send them off to be fried in front of you, draw the packaging
It's really worth the price of admission (1000 yen, maybe $6 USD) for the experience of making ramen noodles from scratch
Note: Whether or not it's a true story, it was the movie playing at the cup noodle museum in Yokohama
Maybe you meant to say Umeda Station (Osaka)?
My favorite part is that near the end, there's an American newspaper article on the wall that says Ando was once imprisoned for tax evasion before inventing instant noodles. This is mentioned exactly nowhere else in the museum.