Yes – if the creator enables downloads. Look for a download link under the video (not available for most mainstream movies).
If you’d like, I can share a list of (including specific YouTube channels and apps). Just let me know. download movies in 4k free hot
If you are looking for high-quality cinematic clips or "stock" movies for editing and personal projects, these sites offer extensive libraries of 4K content for free: Yes – if the creator enables downloads