Using a short clip from Jurassic Park (1993), I recorded various sound effects and sampled others from online sources (BBC Sounds) in order to build a immersive soundscape for this scene. The roars of the T-Rex are made from distorting the sample of a roaring lion.
I also recorded foley and sounds for this short clip of a sprawling cityscape from the Sci-Fi Silent Feature - Metropolis (1927). Distorting the foley sounds of shoes on concrete to amplify the sounds of marching workers.