Christian Wilkins enjoys a walk with his entertainment reporter father Richard in Sydney

He made a showstopping appearance at the premiere of Penguin Bloom in Sydney on Wednesday.

But just days earlier, Christian Wilkins kept a low profile in a hat and sunglasses as he stepped out with his entertainment reporter father Richard and their female friend.

The 22-year-old, known for his quirky and eccentric fashion sense, donned a casual ensemble as he enjoyed a walk in Sydney.

Christian wore a black singlet and matching coloured shorts as he soaked up the sun during the stroll.

He completed the ensemble with a pair of yellow sneakers and wore a red hat for the outing.

Meanwhile, Richard also looked stylish in printed shorts, a blue buttoned shirt and a pair of flip flops.

Casual: The 22-year-old, who is known for his quirky and eccentric fashion sense, donned a casual ensemble as he enjoyed a walk in Sydney

The outing came days before Christian made a fashion statement as he attended the screening of Penguin Bloom at the Westpac Open Air cinema on Wednesday.

He kept to his usual bold style wearing a long-sleeve shirt with a peephole offering a glimpse of his chest.

He paired the shirt with tailored striped pants and a pair of boots as he posed with pal Gabriella Power on the red carpet before the film.

Style statement: On Wednesday, Christian made a statement as he attended the screening of Penguin Bloom at the Westpac Open Air cinema in Sydney

Richard and his girlfriend Nicola Dale also beamed as they struck a number of poses on the red carpet at the star-studded event.

Richard braved the chilly wind of the harbour city by wearing a stylish black coat, scarf and a pair of tight black jeans.

Meanwhile, Nicola opted to wear a stunning black fur coat along with leather pants and a pair of low-shine black boots.

Loved-up: Richard and his girlfriend Nicola Dale also beamed as they struck a number of poses on the red carpet at the star-studded event