I'm using FCPX to put together footage for a local public service video. It will be under 4 minutes. It entails a presenter and quite a few cut-aways. The presenter is on-screen for a total of less than 2 minutes, all in short clips of 5 to 15 seconds.
The problem is that the background was overlit. Here's a still of the presenter (whose face has been obscured).

I'd appreciate any suggestions on how to darken the background.
Thanks in advance.
The problem is that the background was overlit. Here's a still of the presenter (whose face has been obscured).

I'd appreciate any suggestions on how to darken the background.
Thanks in advance.