The Hobbit trilogy''s many expanded scenes were divided by fans in order to include one book across three movies, including Gandalfs'' troubles with the Necromancer, simply inflating and exaggerating them, and others completely completely from scratch (like Tauriel and her clash with Thranduil).
These scenes were difficult to encase in the plot of The Hobbit, but they also caused the crew to take some very difficult scenes in terms of technical aspects of filming them, with many challenges in dealing with freezing cold water, animateting huge quantities of gold, and creating real tactile scenes in the many harsh CGI moments.
The Legolas is just one such character who was inutilely added to the Hobbit trilogy, and whose incredible abilities and physical ingenuity caused Orlando Bloom a lot of trouble. Some of the scenes involving Legolas are complex, but one of the greatest is when Legolas jumps onto the bridge in Lake Town to shoot his bow, at some invading orcs, which took a staggering amount of effort to get right.
In the Battle of the Five Armies, Legolas grabs a hold of a giant, flying bat from Gundebad, hangs upside down from its clawed feet, and has single-handedly removed an entire troupe of ors from this upended position. However, this scene was nevertheless a difficult experience for Orlando Bloom to film, due to the blood rushing to his head as he was suspended upside down in the studio.
The Hobbit films have two difficult scenes, each causing them to wreak havoc on the actors. The first is when the dwarves tried to sneak into Lake Town. This involved Bard concealing them beneath the hoard of fish found that day. Instead of using prop fish, Peter Jackson decided to make it more authentic by employing real fish, which is extremely large, large and slippery.
The biggest disadvantage with filming this scene was that Adam Brown (who played Ori) was completely buried beneath the weight of large fish, putting him near death. The second barrel scene that was particularly difficult to tackle was the one in which the dwarves and Bilbo escaped from the dungeons in Mirkwood, where body suits became extremely heavy and difficult to maneuver in once wet, which posed a danger for the safety team.
The Battle of the Five Armies is one of the most spectacular events in the trilogy, with so many things happening all at once, including CGI orcs, people in prosthetics, mechanisms, birds and beast, and many more variables. Although, the hardest part about filming this frightening challenge was not just the preparation that ended it, but the lack of preparation beforehand.
Peter Jackson admits that he and his crew had absolutely no idea what they was going to do with the scene when they first made shooting it. This war left the entire schedule behind, causing Jackson to take a break to develop a plan for the scene, which many observers believe is still a drag.
The actors'' first scene was the one in which the thirteen dwarves were caught by the gigantic spiders in Mirkwood. This involved a lot of work for the prosthetics team to cover the entire Mirkwood with long-chained stringy webs that would bounce and have the desired ricochet effect. However, each of the thirteen actors had to be wrapped from head to toe in this same substance, to the point where their arms and legs were bent and useless.
As they both went through their scenes, they were then stuck as they would for extended periods of time in between shooting. It was impossible to unwrap and re-wrap them between takings. By the end of the day, the actors were extremely uncomfortable, overheated, and even dehydrated.
The most reportedly difficult scene to create in the entire trilogy was on behalf of Weta Digital, which had to transport millions of individual jewels and coins across Erebor. In the iconic scene in which Bilbo finally comes face to face with the mighty dragon, he can be seen running through a volley of coins, sending them flying wherever he goes. Smaug, however, travels through the treasure, with his claws, wings, and his lavish tail.
This was a very complex scene to animate, partly due to the fact that Smaug was too large to fit inside the halls for Erebor, so they had to make the structure appear architecturally great as he ventured through pillars and stone turrets to make room for his large snake-like body, but this was mostly due to Thorin''s patience and commitment to detail when it came to moving every single piece of treasure in the hall, one by one, without any continuity errors.