Kevin and Susan had become a fixture in the closing days of the Festival with the pair reuniting for the Better World gala on Thursday, while Kevin promoted the second and third part of his Western epic on Friday and Saturday.
Kevin wasn't alone for the Venice Film Festival as son Cayden Wyatt Costner also joined his father for some red carpet appearances.
Scroll down to the best famous faces from the closing day…
Kevin is both directing and starring in Horizon: An American Saga, and the actor looked worlds away from his hero. The star looked suave in a grey suit as he attended the premiere for his latest flick.
Susan made sure to support her close friend at the premiere of his film and the actress looked beautiful in a black pantsuit with a glimmering silver jacket.
Succession star Alexander looked so suave at the event as he rocked a custom Calvin Klein black double breasted Italian wool suit jacket with grosgrain lapels and straight leg trousers, paired with a white organic cotton shirt and silk grosgrain bowtie.
Abbey made an appearance as Marigold in Horizon's first film and the Australian model supported her former co-star and looked phenomenal in a lacy black and white number.
Kevin wasn't just supported by his co-stars at the premiere, but his teenage son Caleb Wyatt also joined his father. The 17-year-old looked dapper in a tan suit with a black shirt.
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