Jewish actor and comedian Joseph Gordon-Levitt invited his followers on social media to send pictures of themselves in Holloween costumes to an online project of his. Titled the Halloween 2020 Project, Gordon-Levitt has users submit Halloween-themed photos of themselves to HitRecord, the online collaborative media platform Gordon-Levitt created in 2004. It's my favorite day of the year... Happy Halloween everyone I want to see some costumes! Show me a photo of yours here: https://t.co/iNFmRxQA5S — Joseph Gordon-Levitt (@hitRECordJoe) October 31, 2020 'Halloween is my favorite day of the year, and however you're celebrating this year, I wanna see all your costumes, artwork and video footage (basically anything related to Halloween),' he wrote on the project's webpage. Users can submit photos of themselves in costume or simply one that is Halloween-themed. In addition, they can also submit their own artwork as well as video clips. At the time of writing, over 200 photos have been submitted. Other Jewish celebrities took to social media in honor of Halloween, a holiday when people traditionally dress up in costumes, usually with an emphasis on the macabre. Actor Daniel Radcliff, most famous for playing the titular character in the Harry Potter films, took to Instagram in a zombie-esque costume. View this post on Instagram Tag the page on your Halloween costume pictures for a chance to be featured on tomorrow's post. Photos by Serge Leblon. #halloween #halloweenmakeup #31october #horror #halloweencostume A post shared by Daniel Radcliffe (@daniel9340) on Oct 30, 2020 at 5:32am PDT Adam Sandler, meanwhile, shared on his Instagram story a short clip relating to the film Hubie Halloween, which he starred in and which was released on Netflix at the beginning of October. View this post on Instagram A post shared by Adam Sandler (@adamsandler) on Oct 21, 2020 at 12:21pm PDT Actress Natalie Portman, meanwhile, didn't dress up this year, likely due to the ongoing coronavirus pandemic limiting many Halloween activities. However, she did post a picture of herself dressed up as a child. View this post on Instagram Any guesses what I'm dressed up as here? #fbf #happyhalloween A post shared by Natalie Portman (@natalieportman) on Oct 30, 2020 at 4:43pm PDT Some were not limited to simply horror-themed costumes. Actress Alison Brie took to Instagram to show off her costume as her character Ruth 'Zoya the Destroya' Wilder from the hit Netflix series GLOW. View this post on Instagram Happy Halloween from Ruth Wilder(s)!! #glow A post shared by Alison Brie (@alisonbrie) on Oct 31, 2020 at 4:41pm PDT Other Jewish celebrities also made reference to the holiday over social media.