Auditing Questions on Livent, Inc.

So I have an extra credit audit assignment but I'm having some trouble with a few of the questions, so thought maybe I'd post them here and see if anyone had any ideas -
I'll just post the 2 that I'm having the most trouble with:
1) What inherent risks and " non-typical" audit procedures are used on audits of live theatrical productions, that are not used on normal audits?
2) What professional standards apply to "due dilligence" investigations performed by accounting firms?
This was some questions on the audit of Livent, Inc.
Any suggestions would be helpful.
Thank you.
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