spaceballs

• helmet: what the hell am i looking at? when does this happen in the movie?
  sandurz: now. you're looking at now, sir. everything that happens now, is happening now.
  
  helmet: what happened to then?
  
  sandurz: we passed then?
  
  helmet: when?
  
  sandurz: just now. we're at now, now.
  
  helmet: go back to then.
  
  sandurz: when?
  
  helmet: now.
  
  sandurz: now?
  
  helmet: now.
  
  sandurz: i can't.
  
  helmet: why?
  
  sandurz: we missed it.
  
  helmet: when?
  
  sandurz: just now.
  
  helmet: when will then be now?
  
  sandurz: soon.
  
  helmet: how soon?