Bill & Ted's Excellent Adventure (1989)

Believe it or not, I had never heard of Bill & Ted before Keanu Reeves and Alex Winter announced the third film and basically Film Twitter lost it.  Since I love Keanu Reeves, I decided to check out the first of the series, Bill & Ted's Excellent Adventure.

The story follows Bill (Alex Winter) and Ted (Keanu Reeves), two Californian teens who want to start their own rock band. Unfortunately, they both are on the verge of flunking in high school and if they don't pass their upcoming history report, they will be expelled and separated as Ted's father (Hal Landon Jr.) will be sending him to military school. Help arrives from Rufus (George Carlin), a man from the 27th century who comes down in a time-travelling telephone booth and gives the dudes the chance to travel back in history and gather historical figures in order to complete their report for the next day and save the future.