Integrate exception notification into your MovieDB. Use your personal e-mail as the notification target for now. You can omit any references to sidekiq for now.
Trigger an error in MovieDB and receive the notification.
Ask a colleague to show you how their SWAT teams deals with exception notifications.
Ask a colleague to show you SentryShow archive.org snapshot, which is a tool we use on apps with non-trivial traffic. Understand the advantages this gives you: