This effect was generated in Filter Forge, a Photoshop plugin that allows you to create your own filters.
A filter to add a 35mm film frame border. Use the ‘Size Pixels’ Slider to Scale the Effect.
The effect looks best if the original image has a 3:2 Ratio
If you don't want to crop the original image a border can be added first. There may be a white area at two ends that you may wish to crop off.
To make the effect even more authentic, frame numbers can be added in Photoshop
Please check the Comments link at the Permalink for some example pictures.
Frame Border Slide neg negative 35mm film sprocket holes
This filter has earned its author one of our rewards. They are given to the authors of popular filters and include a free copy of Filter Forge.