Complex sentence: The production team redesigned a house to give a claustrophobic feel to the family home, where much of the filming was done, to provide a contrast from the expansive real world outside, which the protagonist is trying to escape into.
Split into simpler sentences: The production team, redesigned a house to give claustrophobic feel to the family home, where much of the filming was done. Also to provide a contrast from the expansive real world outside, which the protagonist is trying to escape into.