Heroes Are Not Wet Behind the Ears (1978)

Jean-Bernard and his cousin Pierre hold second-rate positions -they are afraid of everything in their bank ,mistaking the alarm system technician for a dangerous gangster ;small minds, nothing to attract girls ,they share the same apartment where they eat canned food . During a trip to the country ,they meet a girl they take to their place.Both try to seduce her,but they do not know she is a minor runaway.