Karen or Bust (2018)

Ringo and Freddie, two 16 year teenagers from upstate New York, hitchhike to Florida in 1966, the summer before the "Summer of Love," to see an old girlfriend. They don't make it but they battle with segregation, discrimination, injustice, almost get killed by rednecks, and learn about an underground community in Baltimore where Ringo falls for someone else.

Unfortunately the movie Karen or Bust is not yet available on HBO Max.