Can I post Steamboat Willie on YouTube?

Hello, I'm curious about posting Steamboat Willie, the classic Disney short film, on YouTube. I understand that copyright laws can be complex, especially when it comes to older media like this. Would it be legal for me to upload Steamboat Willie to my YouTube channel? If not, are there any specific restrictions or guidelines I should be aware of? I'm eager to share this beloved classic with my audience, but I want to make sure I'm doing so within the bounds of the law.