Cicada by Tanya Pell

Ash is stranded at a rural horror film festival about a giant killer cicada and can't decide what's worse, the movie or her idiot boyfriend, until she realizes she's starring in the bloody sequel when people start dying and the locals won't let them leave.

Part of the Killer VHS series of standalone novels from Shortwave Publishing - where movie monsters come to life and old VHS tapes summon long-buried evils. You'll probably survive, as long as you remember to be kind and rewind.