Josh Hartnettseemingly doesn’t know how to quit thinking about smoochingJoaquin Phoenix.

But, the thing Hartnett laments the most?

“I’ve always wanted to kiss Joaquin,” he joked.

Josh Hartnett; Joaquin Phoenix

Josh Hartnett says he and Joaquin Phoenix were originally cast in ‘Brokeback Mountain.'.Dave J Hogan/Getty Images; Albert L. Ortega/Getty Images

“So that’s my biggest regret.”

Representatives for Phoenix didn’t immediately respond to EW’s request for comment.

Gyllenhaal has since spoken about Ledger’s deep appreciation for the role and its importance to pop culture.

Film Title: Brokeback Mountain

Heath Ledger and Jake Gyllenhaal in ‘Brokeback Mountain.'.Kimberly French/Focus Features

“Someone wanted to make a joke about the story or whatever he was like, ‘No.

This about love.’

Like, that’s it, man,“Gyllenhaal said.

Read Hartnett’s full interview here.