Open your IMovie Timeline and make sure

timeline has all media connected as shown

Choose Project and
>Sent Event to Final Cut Pro

Open Final Cut Pro

Click on this icon to see the timeline and clips

Click on the My Movie
Project

Choose
>File>Export XML

Choose where to save it

Title the Save As

>General and Current Version

Click Save

Open Davinci Resolve

Choose
>File
>Import
>Timeline

Navigate to the timeline

Choose Open

Keep default settings on this menu



Choose OK

Timeline will come into resolve