The swimming pool scene was shot on the coldest day of the year. The recorded temperature of the water was 3 degrees.
Richard was injected live on camera with Botox. It is reported to have hurt.
The snake used in the picnic scene was a python called levyathon. The snake was handled by Lana Te Brugge and is one of her pets. The snake was not harmed during filming.
Other than a basic concept. The entire film was improvised. Their was no script to follow.