‘Agent Elvis’ turns the King into a secret agent in a surreal Adult Swim-style comedy

Wedding the irreverence of Adult Swim to the kinetic animation style of “Spider-Man: Into the Spider-Verse,” “Agent Elvis” is a psychedelic head trip that takes that old story about Elvis Presley’s fascination with the FBI and running (and jumping and kicking) with it. Produced with Priscilla Presley, it’s certainly weird, although given all the ’70s references, it’s frankly hard to envision for whom this is intended.