She certainly made an impression when she turned up for a Q&A at the Vulture Festival at the Hollywood Roosevelt Hotel on Saturday.

Chloe Grace Moretz looked old Hollywood elegant in a silky white blouse that she teamed with bright red brocade palazzo pants and red high-heeled sandals.

The 21-year-old strawberry blonde was all set for her In Conversation With Tatum O'Neal gig, one of the two-day festival's events.

The beautiful blonde asked Chloe about her decade in front of the cameras and how her leading role in The Miseducation Of Cameron Post had contributed to her growing voice as an activist for LGBTQ+ rights.

In the drama, set in 1993, Chloe plays a teenage girl who is forced into gay conversion therapy by her conservative guardians.

Director and co-writer Desiree Akhavan, 34, also joined the conversation.  The American-Iranian brunette wore a grey parachute jumpsuit.

The Miseducation Of Cameron Post played at the Sundance Film Festival in Park City, Utah, in January where it won the Grand Jury prize.

It has gone on to screen at various festivals around the US and was given a wide release on August 3.