Old Film Strip Photoshop Effect On A Tall Ship Photograph - How To

I like the look of old film so I bookmarked this fun effect at Design Nocturne quite awhile ago. The original shot is the tall ships as they came into Duluth, Minnesota last summer. I have some old negatives; so I think I'll scan the them at a higher resolution than the one that was generously shared by Struck Dumb. I'd like to be able to print the image at a larger size.

The original tutorial is very well written but I made notes for myself indicating some small changes I made:

Open the film strip image in Photoshop.
Images > Adjustments > Desaturate
Save
Note the size of the center opening.

Open the photo in Photoshop.
Re-size the image to match the film strip opening size.
Image > Adjustments > Desaturate
Image > Adjustments > Curves
   Click the black picker to choose the darkest area.
   Repeat with the white eyedropper for the lightest area.
Save

Place the photograph onto the film strip image. Line it up to fit inside the opening.

Command J to copy the layer.
Filter > Blur > Gaussian Blur - set to 20 pixels.
Apply a layer mask
   Click on the gradient tool. White to Black gradient. Radial, white in center, black on edges.
   Drag the gradient out from the center to an edge.
   The edges will be blurred, the center clear.

Adjustment Layer > Solid Color - color 2b2b25 ( a yellowish black)
Blend mode > Lighten. Opacity 75%

Adjustment Layer > Solid Color - color ddd6bf  (a tan color)
Blend mode > Overlay. Opacity 25%

Vignette:
Gradient Fill > Radial. Check reverse. Color transparent to black. Angle 90. Scale 100
Blend Mode > Soft Light

Noise:
Fill a new layer with a mid grey color.
Filter > Noise > Add Noise. Amount 100%
Check Gaussian and Monochromatic
Filter > Blur > Gaussian Blur. Radius 1.0 pixels
Blend Mode > Overlay. Opacity 15%

Flatten the image.
Rotate the image slightly and crop.

Give it a final Gaussian Blur set to 1.5 pixels.