Guide

How to apply a LUT in iMovie.

Updated November 6, 2026

Apple iMovie (Mac and iOS/iPadOS) does not load free-standing .cube LUT files the way Final Cut Pro, CapCut, Resolve, or Premiere do. There is no documented Color Lookup / Load 3D LUT / Custom LUT browser inside iMovie for arbitrary .cube packs. If a tutorial shows a LUT picker, it is almost certainly another app. This page stays honest about that limit and gives a clean path that still gets a Filmsilk Rec.709 look onto your cut.

Before you start

• Do not hunt for a missing Load 3D LUT menu inside iMovie—it is not there for free-standing .cube files.
• Unzip the download so the grading app sees a real .cube file (not a .zip).
• If the footage is log, convert to Rec.709 first, or reserve a technical LUT only for that conversion. See Log vs Rec.709.
• Prefer 33-point cubes for everyday social and YouTube work; keep a 65-point copy if soft gradients matter.
• Decide which grading app you will use for the creative look (Final Cut is the closest Apple neighbor; CapCut, Resolve, and Premiere are common free or existing installs).

Step 1: Preview the look without uploading

1. Open the free LUT previewer and drop in a Rec.709 still from your clip (processed entirely in your browser).
2. Try the Filmsilk looks and note which one fits skin, sky, and shadows on your frame.
3. Download or keep the matching .cube from your Filmsilk pack once you buy (or use a free look while evaluating).

Step 2: Apply the .cube in an editor that supports it

1. Final Cut Pro: Custom LUT on a clip or adjustment layer. Full steps: How to apply a LUT in Final Cut Pro.
2. CapCut (desktop): Effects / Filters path that browses a .cube. Full steps: How to apply a LUT in CapCut.
3. DaVinci Resolve: Color page LUT node or timeline LUT. Full steps: How to apply a LUT in DaVinci Resolve.
4. Premiere Pro: Lumetri Creative / Basic Correction Input LUT. Full steps: How to apply a LUT in Premiere Pro.
5. Keep Rec.709 input for creative Filmsilk looks. Format notes: What is a .cube file?

Step 3: A/B, then finish delivery

• Toggle the creative LUT off to A/B a bright exterior, a dark interior, and a face close-up before you commit.
• Export a short test at delivery resolution from the grading app.
• If you still want iMovie for titles or a simple cut, import the graded export—do not expect iMovie to re-apply the .cube.
• Watch for crushed blacks, neon skin, and graphics that pick up the look too hard.

Role of each tool: LUT vs color grade. General notes: How to use a LUT.

Step 4: Keep the project honest

• Save the grading project so the loaded LUT path stays with the timeline.
• Keep a copy of the .cube with your project archive; do not rely on iMovie Filters as a stand-in for a custom cube.
• If a client asks for iMovie-only delivery, explain that custom .cube looks need a grading pass in Final Cut, CapCut, Resolve, or Premiere first.

Preview any .cube on your own still in the free LUT previewer (nothing uploads). Final Cut steps: How to apply a LUT in Final Cut Pro. CapCut steps: How to apply a LUT in CapCut. Avid notes: How to apply a LUT in Avid Media Composer.

FAQ

Does Apple iMovie support .cube LUTs?

No. Apple's iMovie (Mac and iOS/iPadOS) does not provide a documented Load 3D LUT / import .cube control for free-standing creative LUT files. Built-in Filters and looks are the in-app path. If you need a custom Rec.709 .cube such as a Filmsilk look, apply it in an editor that accepts .cube (Final Cut Pro, CapCut, DaVinci Resolve, Premiere Pro, After Effects, and others), then bring the graded media into your delivery step.

What is the best path if I normally finish in iMovie?

Preview the look on your own still in the free Filmsilk LUT previewer (nothing uploads), then grade a Rec.709 export or timeline in Final Cut Pro (Custom LUT), CapCut, Resolve, or Premiere. Export a short test, A/B skin and highlights, and only then finish titles or a simple cut in iMovie if that remains your delivery app. Do not invent a missing LUT browser inside iMovie.

Should I apply a creative LUT on log footage?

No. Convert log to Rec.709 first (or use a technical conversion LUT only for that step), then apply a creative Rec.709 look. Filmsilk looks expect Rec.709 input.

Can I convert a .cube into an iMovie Filter?

There is no supported Apple workflow that turns an arbitrary third-party .cube into a native iMovie Filter. Stick to editors that load .cube directly, or use iMovie's built-in Filters only for a different look language.

Where Filmsilk fits

Filmsilk ships standard 3D .cube looks for Rec.709 that load wherever your editor accepts .cube—Final Cut Pro, CapCut, Resolve, Premiere, After Effects, Photoshop, HitFilm, VEGAS Pro, Filmora, and Avid Media Composer after Color Management install. iMovie itself does not load those files; use one of the editors above for the creative look. Try every look on your own frame before you buy. The Collection is $29 one-time; Filmsilk Complete is $39 with Studio export.