diff --git a/site/blueprints/files/artwork.yml b/site/blueprints/files/artwork.yml
index 21471af..4ea70bd 100644
--- a/site/blueprints/files/artwork.yml
+++ b/site/blueprints/files/artwork.yml
@@ -9,6 +9,24 @@ fields:
             en: Alternative text
             fr: Texte alternatif
         type: text
+    poster:
+        when:
+            file_type: video
+        label:
+            en: Poster
+            fr: Vignette
+        type: files
+        uploads: image
+        layout: cards
+        image:
+            ratio: 16/9
+            cover: true
+            back: white
+        multiple: false
+        help:
+            en: "Image displayed before video playback (format: JPEG or PNG). The first image of the video is used if this field is empty."
+            fr: "Image affichée avant la lecture de la vidéo (format : JPEG ou PNG). La première image de la vidéo est utilisée si ce champ est vide."
+        width: 1/4
     caption:
         label:
             en: Caption
diff --git a/site/templates/gallery.twig b/site/templates/gallery.twig
index 88045bf..87f1110 100644
--- a/site/templates/gallery.twig
+++ b/site/templates/gallery.twig
@@ -20,9 +20,15 @@
                     {% for artwork in artworks %}
                         <figure class="gallery__artwork">
                             {% if artwork.type == 'video' %}
-                                <video class="gallery__video" controls playsinline preload="metadata">
-                                    <source src="{{ artwork.url }}" type="video/mp4" />
-                                </video>
+                                {% if artwork.poster is not empty %}
+                                    <video class="gallery__video" data-poster="{{ artwork.poster.toFile.url }}" preload="metadata" controls playsinline>
+                                        <source src="{{ artwork.url }}" type="video/mp4"/>
+                                    </video>
+                                {% else %}
+                                    <video class="gallery__video" preload="metadata" controls playsinline>
+                                        <source src="{{ artwork.url }}" type="video/mp4"/>
+                                    </video>
+                                {% endif %}
                             {% endif %}
                             {% if artwork.type == 'image' %}
                                 <img class="gallery__image" src="{{ artwork.url }}" srcset="{{ artwork.srcset() }}" alt="{{ artwork.alt_text }}">
diff --git a/site/templates/home.twig b/site/templates/home.twig
index 7aa15bd..ae457ce 100644
--- a/site/templates/home.twig
+++ b/site/templates/home.twig
@@ -13,9 +13,9 @@
                 <nav class="home__nav" aria-label="Menu">
                     {% set navItemNo = 1 %}
                     {% for gallery in pages.template('gallery') %}
-                    <div class="home__nav-item-{{ navItemNo }}">
-                        <a href="{{ gallery.url }}" target="_self" class="home__nav-link">{{ gallery.title }}</a>
-                    </div>
+                        <div class="home__nav-item-{{ navItemNo }}">
+                            <a href="{{ gallery.url }}" target="_self" class="home__nav-link">{{ gallery.title }}</a>
+                        </div>
                     {% set navItemNo = navItemNo + 1 %}
                     {% endfor %}
                     <div class="home__nav-image" aria-hidden="true">