BlacKkKlansman (2018): Brilliant, mostly true true story about Colorado Springs police officer Ron Stallworth and his infiltration of the KKK back in the 1970's. The catch? Ron is African-American. So he infiltrates over the telephone while fellow officer Flip Zimmerman (played by Adam Driver) 'plays' the white Ron Stallworth.
Funny and harrowing by turns, this 2018 film has somehow become MORE relevant than ever in less than two years. Spike Lee is in top form, as is the cast. Highly recommended.