You will, however, be shown a movie and/or short entertainment(s) on any United flight. All United planes have video feature for more than just inflight safety information.
All airplanes with the exception of the 737. Those only have audio. Also for the record, most of the United airplanes do not show safety videos. Only the Airbusses and the 757s along with select 767s and 777s feature safety videos. 737s, 747s, 767-300s, and 3 cabin 777s feature a live safety demo.
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