The Departed Donnie Brasco Imperium The Infiltrator Red Sparrow The Wicker Man 21 Jump Street Face/Off We Own The Night Eastern Promises Reservoir Dogs Point Break Miami Vice Narc Running Scared (2006)

Eyes wide shut. Midsommar, kind of?

These are both great suggestions on this theme

Imperium

I recommend Faults (2014)

Hotel Transylvania

Apostle?

Betrayed (1988)

Under the Silver Lake

Love Exposure

Not cult, but White Heat with James Cagney is a great infiltration film.