Yes, if you have sub(s) integrated into your main speaker setup for 2 channel listening (or your mains go low enough and you own no subs), then tell your movie/surround processor that you have no subs so that the .1 lfe channel, along with possibly the low frequencies from the surrounds (if they are set up less than large) get sent to the mains. In example 1, they will be handled by the mains subs, in example 2 they will get handled by the mains directly. Of course, the subs can go by themselves as dedicated .1 lfe subs, or can be married to the surrounds for that matter (multiple sets of subs).
These examples are typical of most, but not all, processors. YMMV.
Ted_B