Commentary by memnarch (who has not seen the movie)
Ohhhh, those cables shown getting clipped on weren’t for the hauler, they were for Beckett and Han! That... actually makes more sense than what Jim’s writing here. Beckett is rather crazy to not take cover, but being connected to the sci-fi train in case of accidents does seem reasonable in a crazy sort of way.
Is this a train or a rollercoaster at this point? It would have to be moving extremely fast in order to bank like that through the turn and not fall off the track. It definitely makes for a cool set-piece though. This train is definitely not going to make it to the end of the scene, even if the bridge doesn’t get blown up on schedule.
Transcript
Jim: A near miss tumbled Beckett off the side of the train!
[SFX]: Boom!
Beckett: Fortunately I must have a safety line.
[SFX]: rumble rumble...
Jim: You do?
[SFX]: Pow!
Beckett: I’d be crazy not to, right?
Jim: ... So, do you have one or not?
[SFX]: rumble rumble...
Jim: The train banked by 70° as it rounded a corner! Beckett stood up on the side of the train!
[SFX]: rumble rumble...
[SFX]: Pow! Pow!
[SFX]: rumble rumble...
Jim: Chewbacca fell!
Chewbacca: Woe am I! I should have gripped something!
Chi’ra: I got you, buddy!
Chewbacca: ’tis serendipitous that you possess the upper body sinew to sustain my substantial substance.