iMovie keeps crashing

When I open iMovie it frequently doesn't open. Usually after a few tries, it's OK. Today it's constantly "not responding." How to fix this issue?

MacBook Air 13″, macOS 14.8

Posted on Oct 23, 2025 2:09 PM

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Question marked as Top-ranking reply

Posted on Oct 26, 2025 7:44 PM

Re: iMovie keeps crashing


✽ Check if your Mac has enough memory > storage space free (Eg: 50 Gb) to ensure smooth operation of all you want to do. (Any storage space in iCloud is quite separate)

You can check in Apple menu > System Settings > General > Storage

(Remember to back up your data first, if you need to delete anything to make space available.)


Seems you have MacOS 14.8 installed:

See: What's new in the updates for macOS Sonoma - Apple Support

Eg: says: the newest version is macOS Sonoma 14.8.1 :

"This update provides important security fixes and is recommended for all users"

✽ NB: If you choose to update your Mac.it is always wise to back-up Mac first


Else: If you are already using MacOS 14.8.1:


✽ Try quitting iMove > restart your Mac (Apple menu > Restart)> log back in and test iMovie

✽ Wondering which version of iMovie is onstalled on your Mac:

It may be worth checking the App Store for iMovie updates.

________

If needed: See what to do:

If an app on your Mac stops responding, quits unexpectedly, or won’t open - Apple Support

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1 reply
Question marked as Top-ranking reply

Oct 26, 2025 7:44 PM in response to Joyals0

Re: iMovie keeps crashing


✽ Check if your Mac has enough memory > storage space free (Eg: 50 Gb) to ensure smooth operation of all you want to do. (Any storage space in iCloud is quite separate)

You can check in Apple menu > System Settings > General > Storage

(Remember to back up your data first, if you need to delete anything to make space available.)


Seems you have MacOS 14.8 installed:

See: What's new in the updates for macOS Sonoma - Apple Support

Eg: says: the newest version is macOS Sonoma 14.8.1 :

"This update provides important security fixes and is recommended for all users"

✽ NB: If you choose to update your Mac.it is always wise to back-up Mac first


Else: If you are already using MacOS 14.8.1:


✽ Try quitting iMove > restart your Mac (Apple menu > Restart)> log back in and test iMovie

✽ Wondering which version of iMovie is onstalled on your Mac:

It may be worth checking the App Store for iMovie updates.

________

If needed: See what to do:

If an app on your Mac stops responding, quits unexpectedly, or won’t open - Apple Support

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iMovie keeps crashing

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