How to build the world's largest model railway bridge to make an action movie, 1/87 HO scale train

How to make a big movie set for a head-on train collision on the tallest bridge ever built in HO 1:87 scale. Building a realistic railroad diorama to film a train crash action scene, inspired by “Under Siege 2: Dark Territory“ movie. The whole structure: 10m / 33 ft long The bridge: 5,20m / 17 ft long 0:00 Bridge 3d creation and printing 0:16 Assembly of 3d parts 1:06 Painting and patina of the bridge 1:43 Painting of the passenger train 2:02 Painting of the freight train 2:34 Build of the scenery structure 3:13 Set the diorama at the shooting location 4:07 Added diorama details 4:35 Assembling the trains on the set 4:57 Final preparations before filming at night 5:14 1st shot of the collision 5:35 2nd take with explosion 5:54 Shot of the bridge collapse 6:02 Editing result Bridge designed by me then 3D printed by: Miniature freight Southern Pacific train HO Scale : 4x locomotives SD40T-2 Athearn 10x custom tank cars Jouef Miniature Grand Continental passenger train HO Scale : 2x locomotives GP35 & GP40 Athearn 5x passenger car Superliner Con-Cor 1x baggage car Athearn