Picture show and Short subject

Picture show noun - A form of entertainment that enacts a story by sound and a sequence of images giving the illusion of continuous movement.

Short subject and picture show are semantically related. In some cases you can replace phrase "Short subject" with "Picture show", this phrases are similar.

Short subject noun - A brief film; often shown prior to showing the feature.

Picture show and short subject are semantically related. Sometimes you can use "Picture show" instead a noun phrase "Short subject".