1. Apply Sebastian Professional Potion 9 Lite to damp hair and blow dry for a straight with an even texture.
2. Once the hair is dry, spritz on Sebastian Professional Trilliant and use a medium-sized curling iron to achieve a head full of loose waves.
3. Pull the front sections away from the face and secure with bobby pins.
4. Finish with Sebastian Professional Shaper Fierce for maximum hold.
For a look at Sarah in the film, check out this clip: