Any time you get to see Napoleon, Billy the Kid, Socrates, Ghengis Kahn, and Joan of Arc hanging out with two nearly brain-dead, Eddie Van Halen-obsessed high schoolers in a movie, it’s bound to be pretty entertaining. That’s what you get and more in Bill and Ted’s Excellent Adventure, late ’80s cult classic and comedy “history lesson.” The Recovery Room will be screening the stellar Keanu Reeves’ performance Tues. Feb. 17 for the movie’s 20th anniversary. Beer will be served, as usual, and you can bet the crowd will be enthusiastic. Get there at 8 p.m. to reserve a stool. —Hadley Lyman