Because EA has not officially remastered Most Wanted (2005) for modern consoles with these specific live-action scenes, fan communities have preserved them.
: A rare, unused "story" cutscene found in Asian releases is available for download on Troubleshooting Missing Cutscenes nfs mw 2005 cutscenes file download
If you're looking to download cutscene files specifically, you might come across third-party websites that offer such content. with these sources: Because EA has not officially remastered Most Wanted