Joaquin Phoenix's haunting portrayal of "Arthur Fleck" in Joker earned him the Best Actor award at the 2020 Oscars this past Sunday. The ceremony capped off the 2020 award show season.

Now that Joker's successful theatrical run and awards season tour have concluded, director Todd Phillips is reflecting on his time with "Joker" actor Joaquin Phoenix.

Phillips took to Instagram to share intimate photos from the film's last day of shooting.

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The "bittersweet" Joaquin Phoenix photos from Joker's last day

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Todd Phillips's emotional images of Joaquin Phoenix during Joker

Phillips's Instagram post notes the "intense and unique experience" of shooting Joker with Phoenix. The photos show the two men embracing and Phoenix performing some of the final scenes in Joker.

He also goes on to thank the entire cast and crew behind the making of the film.

Joaquin Phoenix accepts an award from Todd Phillips during the Palm Springs International Film Festival in 2020.

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Joker: One of the year's top movies

In addition to the film's record-breaking box office successJoker was a critical and awards season star. Phoenix's performance and the film's score, composed by Hildur Guonadóttir, were especially popular with awards show voters. 

Both Phillips and Phoenix have mentioned that a sequel to Joker is a possibility.

If Phillips's nostalgia for spending time with Phoenix on Joker is any indicator, perhaps another round of Phoenix as "Joker" could be in the works sometime soon!