Mystery over Oscar-winner Sean Penn's absence revealed

Sean Penn and Ukrainian President Zelensky
Sean Penn skipped the Oscars to meet with Volodymyr Zelenskiy in ​the presidential office. -EPA

Film star Sean Penn stepped out of a train carriage in central Kyiv, thousands ‌of kilometres from the glitz of Hollywood's Dolby Theatre when he had ‌failed to turn up to receive his third Oscar hours earlier.

Penn, ‌65, won the Oscar for best supporting actor for his role in the political thriller One Battle After Another, but skipped Sunday's ceremony to travel to meet Ukraine's President Volodymyr Zelenskiy in the war-battered capital.

Ukraine's state railway ‌operator posted a ‌short ⁠video clip of Penn getting out of the train ​in the morning, saying it had kept his trip a secret until the very last moment.

"Now we can say it officially: Sean Penn chose Ukraine over the Oscars!" it said in its Facebook page.

Local media outlet UkraineWorld also posted a photo of the star at the train station surrounded by supporters.

Zelenskiy posted a ⁠picture of him meeting the ‌actor ​in the presidential office in Kyiv's barricaded government quarters.

The photo showed the ​black-clad president talking ‌to Penn who was wearing a t-shirt and jeans. There were ​no immediate details on their conversation.

"Sean, thanks to you, we know what a true friend of Ukraine is," Zelenskiy wrote on ​X.

"You have stood ​with Ukraine since the first day ‌of the full-scale war. This is still true today," Zelenskiy said.

Penn, a long-time advocate for Ukraine, has visited the country several times during the four-year war with Russia.

He filmed a documentary about Russia's invasion, that premiered ​in February 2023. Penn also lent Zelenskiy, a former comedian and ​actor, one of ⁠his other Oscars in 2022.