Luge isn’t like bobsled where they do a running push start and then jump in. Luge starts seated on the sled and they throw themselves onto the course with some handles on poles embedded in the ground at the start point (its sort of a rowing motion). The spikes are probably to use as breaking.

It’s the bag for his gas mask.

You’re still confusing net and gross there. Let’s say they spent $70 mil on marketing and distribution. $170+$70=$240 million in costs. Let’s also say they get 75% of box office sales. 410*.75=$307.5. 307.5-240 = $67.5. $67.5 million in profit. Again, they almost certainly made a profit, but not nearly as big of one as the $200 million you proposed.

The $170 million budget is just movie production, it doesn’t include marketing and distribution. The $410 million at the box office is gross, not net. It’s what the tickets cost the customers not how much made it back to the production company. They almost certainly made a profit, but not nearly as big of one as the $200 million you propose.