The film had four large-scale VFX sequences. Supernatural birds, Poseidon’s waves, Roy’s destruction, and the bridge collapse were CG.

For Poseidon’s sequence, creating a tidal wave crashing down the street was complex and required four different simulations and lighting set-ups - back lit, in-shadow and front lit. Keeping the consistency was a challenge.

For the bridge collapse, we shot bikers on a real bridge location, then replaced everything. The environment concept came from aerial photography from Hawaii.

We had to shoot Roy from a different perspective at a slower frame-rate to achieve the ‘giant’ factor, then created a CG destructed street. Stone, metal and glass was simulated and fractured.

Compositing was key - we extended/rebuilt 90% of environments. E.g. the banker scene was shot in a four-story building street - we added in 40-story buildings, widening the street to match the grandness.