user24076: I'm creating different libraries for each of my projects. When I attempt to open a new library via File > Open Library, it has both the old library open and the new one open.
I want to close the old one so I don't accidentally create projects within the old library. 
File > Close Library is disabled. If I try to close iMovie and re-open it, it remembers the last library that was opened.
How do I open just a new iMovie Library?

user24076: Find the Library in finder (e.g. ~/Movies), and double click it.
You can be sure that it's the only open Library by using the drop down menu in Projects:


24076: <p>I'm <a href="https://video.stackexchange.com/questions/25932/imovie-workflow-for-creating-different-versions-or-snapshots">creating different libraries</a> for each of my projects. When I attempt to open a new library via File > Open Library, it has both the old library open and the new one open.</p>

<p>I want to close the old one so I don't accidentally create projects within the old library. </p>

<p>File > Close Library is disabled. If I try to close iMovie and re-open it, it remembers the last library that was opened.</p>

<p>How do I open just a new iMovie Library?</p>
 24076: <p>Find the Library in finder (e.g. ~/Movies), and double click it.</p>

<p>You can be sure that it's the only open Library by using the drop down menu in Projects:</p>

<p><a href="https://i.stack.imgur.com/d9u8K.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/d9u8K.png" alt="enter image description here"></a></p>
