I’m a complete sucker for media showing the Georgetown Branch in its heyday, and get pretty excited when it’s of the film/video variety. There are simply not that many films in existence which depict the branch in service! There are fabled copies of a film showing the fan trip down the line in the late 40s held by the NRHS but I haven’t even been able to get a reply from them on this.
Anyway, in this film which is a snippet of a collection of aerial footage of DC in 1954 shows the Georgetown waterfront area for the first 23 seconds. Not that great, it’s wobbly, but it’s there. Note the aqueduct bridge footings, still in place in the river (Army Corps of Engineers had yet to demolish them), the Lone Star cement factory standing tall and the Hopfmaier rendering plant smoking away across from the Wilkins Rogers mill. The power plant is still standing and the coal steam plant can be seen in the background near the end of the line. Very cool!
http://www.criticalpast.com/video/65675050411_Potomac-River_Lincoln-Memorial_Jefferson-Memorial_National-Airport_Key-Bridge