Obviously in the movie Obi-Wan and Anakin must have taken an express lift of some sort. Given how high the buildings are on Coruscant, they must have the most well-developed lift scheduling algorithms in the Galaxy. Imagine taking a lift from the 450th floor to ground level, and it stopping at every floor in between because other people had pressed the call buttons. You need some seriously smart engineering and programming to deal with that and keep everyone happy. Look at how annoying lifts can be in a ten-storey building and multiply that by 45.
Obi-Wan: I'm glad I bumped into you again, Annie. What have you been up to?
Anakin: Studying, working, you know. I did miss the game, but the last couple of years have been hectic.
Obi-Wan: We meant to call you after the exams, but... We kind of got into this low-magic fantasy campaign, and things slipped.
Anakin: You should tell me about it some time.
GM: Are you two ready? You're taking a lift up to Senator Amidala's apartment.
Obi-Wan: You seem a little on edge, Anakin.
Anakin: Not at all.
Obi-Wan: I haven't felt you this tense since we fell into that nest of gundarks.
Anakin: You fell into that nightmare, Master... ...and I rescued you, remember?
Obi-Wan: Oh yes...
Jar Jar: What's a gundark?
Padmé: It's a big boat used to transport teddy bears.