The Walking Dead star Callan McAuliffe breaks social media silence to pay tribute to late Hollywood director Rob Reiner - who gave him his big break

Australian actor Callan McAuliffe has paid tribute to the late movie director Rob Reiner following his tragic death on Sunday in Los Angeles.

The Walking Dead star, 30, was just 14 years old when he received his big Hollywood break by being cast in Reiner's 2010 drama film Flipped opposite American actress Madeline Carroll.

McAuliffe broke his year-long Instagram silence on Tuesday morning to post a touching tribute to the veteran filmmaker.

He shared two photos to his page, one which captured him and Reiner on the set of Flipped, in which the filmmaker was seen giving him some on-set guidance.

The Sydney-born actor also shared a photo of Reiner with his late wife Michele, who was found dead beside him at their LA mansion.

McAuliffe launched his Hollywood career after being cast in Reiner's movie and went on to appear in many renowned productions, including Baz Luhrmann's The Great Gatsby and the TV series Mayfair Witches. 

Australian actor Callan McAuliffe has paid tribute to the late movie director Rob Reiner following his tragic death on Sunday inLos Angeles

Australian actor Callan McAuliffe has paid tribute to the late movie director Rob Reiner following his tragic death on Sunday inLos Angeles 

It follows reports that Rob Reiner and Michele Singer Reiner's son Nick is in custody and has been booked for felony murder after the director and his wife were found stabbed to death at their home, sources have told the Daily Mail.

The couple allegedly were stabbed after a heated argument with a relative, understood to be Nick, turned deadly at their LA mansion on Sunday afternoon.

Detectives have been questioning their 32-year-old son, who was arrested Sunday night before being booked for felony murder Monday morning. He is being held on a $4 million bail bond, Los Angeles Sheriff's records show.

Reiner made many of the best-known movies of the 1980s and 1990s, including Stand By Me and The Princess Bride, legal thriller A Few Good Men and romantic comedy When Harry Met Sally

The Los Angeles Fire Department (LAFD) confirmed it was called to the couple's Brentwood home at about 3.30pm on Sunday and found a man, 78, and a woman, 70, dead in the property.

Their daughter Romy, who lives just across the street, is said to have made the grim discovery when she visited their sprawling six-bedroom estate yesterday afternoon.

The 28-year-old, who is Reiner's youngest child, told police that a family member 'should be a suspect' because they are 'dangerous', according to TMZ.

Nick has previously spoken about his struggles with drug addiction, which saw him first attend rehab around his 15th birthday and experience periods of homelessness.

The Walking Dead star, 30, was just 14 years old when he received his big Hollywood break by being cast in Reiner's 2010 drama film Flipped opposite American actress Madeline Carroll

The Walking Dead star, 30, was just 14 years old when he received his big Hollywood break by being cast in Reiner's 2010 drama film Flipped opposite American actress Madeline Carroll 

Reiner and his wife Michele were found dead at their Los Angeles mansion on Sunday

Reiner and his wife Michele were found dead at their Los Angeles mansion on Sunday 

In 2016, when he was aged 22, he said he had gone to rehab 17 times, adding that he had been left homeless after refusing to get help on multiple occasions. 

The screenwriter co-wrote the semi-autobiographical movie Being Charlie about his struggles with drug addiction and the impact it can have on a family.

He worked on the film from rehab and collaborated with his director father on the project, which depicts the strained relationship between an actor father and his addict son. It tracks closely with the Reiner family's own experience, they said at the time.

It ends with an apology from the father about the occasionally harsh way he treats his son, including enforced stints in rehab, something Reiner said he gave his son in real life.

Los Angeles Police Department detectives say the deaths are being investigated as homicides, and a heavy police presence was at the home on Sunday evening. 

A neighbour told ABC7 that Larry David and Billy Crystal, who starred in Reiner's rom-com classic When Harry Met Sally, visited the crime scene separately. Crystal allegedly 'looked like he was about to cry' before he left.

Reiner followed in the footsteps of his father, the comic actor and filmmaker Carl Reiner, who died in 2020 aged 98.

He became known as an actor, director and a tireless champion of liberal politics, with California Governor Gavin Newsom, Kamala Harris and Barack Obama among the Democrats to pay tribute to Reiner on Sunday night. 

Reiner first emerged as an actor and is best known for his role as Michael 'Meathead' Stivic on All In The Family.

He won two Emmy Awards and was nominated for five Golden Globes during his stint on the series from 1971 to 1978. 

Reiner helped reinvent his career in the 1980s with his forward-looking comedy This Is Spinal Tap, which would go on to inspire countless mockumentaries.