Matt Dillon, 56, and girlfriend Roberta Mastromichele attend City of Ghosts premiere in Rome

His Hollywood career has just edged into its fifth decade, after he rose to fame following roles in a number of film hits from the 1980s onward.

And Matt Dillon, 56, showed support for the medium he so loves when he and his longtime girlfriend Roberta Mastromichele attended the premiere of City of Ghosts at Rome’s Timvision Floating Theatre on Thursday.

The veteran actor, who is set to join the jury at the 77th Venice Film Festival in September, happily posed for photos with his other half at the cinematic event.

Dillon cut a smart-casual figure, arriving for the evening’s screening in a grey collared T-shirt, which he teamed with a pair of cream chinos.

The Hollywood actor complemented his look with a pair of black leather trainers and swept his hair off his face into a sleek style. 

Matt’s other half Roberta showed off her own flair for fashion, stepping out in a statement floral silk maxi skirt.

The Italian beauty complemented the statement piece with a cropped white T-shirt and styled her brown locks into tousled waves, while she kept her makeup minimal.   

Last month, Dillon served as the honorary president for Filming Italy Sardegna Festival in Cagliari. 

And earlier this week, it was revealed that he would replace Romanian director Cristi Puiu on the main competition jury at the 77th Venice Film Festival in September. 

The festival is set to run September 2-12 and is the first major film festival to go ahead in light of the ongoing COVID-19 pandemic. 

Audience members will be required to wear face masks during screenings and take a coronavirus test if they are arriving from countries outside their green list.

The Oscar nominee will join writer-director Veronika Franz, UK writer-director Joanna Hogg, writer Nicola Lagioia, German filmmaker Christian Petzol and French star Lucivine Sagnier on the jury, which is presided over by actress Cate Blanchett. 

Dillon rose to prominence in the late ’80s with roles in films such as the Outsiders and Rumble Fix.

In 2006, he received Golden Globe and Oscar nominations for his critically-acclaimed role in Crash opposite Sandra Bullock. 

Since then, he has gone on to star in dozens of films including the gruesome flick The House That Jack built in 2018.

He was seen on the red carpet for that project with his girlfriend of nearly six years, Roberta Mastromichele. 

The couple first started dating in 2014, and though they sparked rumours of engagement in 2017, they are yet to publicly confirm any plans to wed.

Last year, Matt defended his decision to star in the Lars Von Trier Film The House That Jack Built, after it sparked walkouts following its premiere at the Cannes Film Festival. 

Speaking in an interview in MR PORTER’s weekly digital magazine The Journal in November 2018, he admitted: ‘I’m OK that people are upset. 

‘It’s meant to be upsetting to you, and you should know, if you’re going to see this that it is going to some very dark, disturbing places.’

He added: ‘But I think it’s a good film. Really good. And I’m glad that I did it.’

In the film, Matt stars as Jack, a serial killer with more than 60 deaths to his name who relishes bloodshed and plots increasingly horrifying ways to inflict death.