
Sadly, you can no longer watch first-run films at the Skyport Cinema, which operated from the early 1950s into the mid-1970s Pittsburgh International Airport (PIT).
Nor can you stop into the three movie theaters (and the skating rink) that operated from 1975 until 1978 in the lobby area of the Dallas Love Field Airport (DAL), after most airlines moved over to the then-new Dallas Fort Worth International Airport (DFW).
But these days you can watch movies for free at these U.S. airports:

Microcinema at Portland International Airport (PDX)
The PDX Airport Microcinema, a branch of Portland, Oregon’s Hollywood Theatre movie palace, has been operating at Portland International Airport (PDX) since 2017.
The 22-seat cinema is on Concourse C and showcases short films (10 minutes or less) by Pacific Northwest filmmakers or films relating to issues in Oregon or the Pacific Northwest. Admission is free.
Check here for the current line-up.

See18 Cinema at Minneapolis-St. Paul International Airport
In 2014, Minneapolis-St. Paul International Airport (MSP) opened its “See 18” Screening Room near Gate C18.
Films still run around-the-clock and feature short films and award-winning documentaries by filmmakers from the Upper Midwest.
You can preview the current offerings before you head to the airport, or watch them online. Admission is free.

Video Arts at San Francisco International Airport
The SFO Museum at San Francisco International Airport (SFO) has a Video Arts program that runs four short (10 minutes or less) films per month by contemporary artists and filmmakers.
The film gallery is located pre-security on the departures level of International Terminal and operates daily from 8:00 am to 10:00 pm.
You can preview the list of offerings before you go the airport, or watch them online. Admission is free.
Here’s one of the short animated films currently on view:
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