Free theme with Media file size above 300 MB

Hi, I’m using Catch Starter free version from WordPress.org and I would like to replace the Youtube URL link on my page that I have at the moment for a short film MP4 file. However, the maximum upload file size in Catch Starter free version is 128 MB but my film file size is 309 MB. Is there a free theme you could suggest that has file size above 300 MB? I look forward to hearing from you. Many thanks in advance. Best regards, Aline