diff --git a/app/src/exportmoviedialog.cpp b/app/src/exportmoviedialog.cpp
index 5212942e9..8b7c1f910 100644
--- a/app/src/exportmoviedialog.cpp
+++ b/app/src/exportmoviedialog.cpp
@@ -31,7 +31,17 @@ ExportMovieDialog::ExportMovieDialog(QWidget *parent, Mode mode, FileType fileTy
     } else {
         setWindowTitle(tr("Export Movie"));
     }
+
+    QSizePolicy policy = ui->unevenWidthLabel->sizePolicy();
+    policy.setRetainSizeWhenHidden(true);
+    ui->unevenWidthLabel->setSizePolicy(policy);
+    policy = ui->unevenHeightLabel->sizePolicy();
+    policy.setRetainSizeWhenHidden(true);
+    ui->unevenHeightLabel->setSizePolicy(policy);
+
     connect(this, &ExportMovieDialog::filePathsChanged, this, &ExportMovieDialog::onFilePathsChanged);
+    connect(ui->widthSpinBox, static_cast<void(QSpinBox::*)(int)>(&QSpinBox::valueChanged), this, &ExportMovieDialog::validateResolution);
+    connect(ui->heightSpinBox, static_cast<void(QSpinBox::*)(int)>(&QSpinBox::valueChanged), this, &ExportMovieDialog::validateResolution);
 }
 
 ExportMovieDialog::~ExportMovieDialog()
@@ -66,6 +76,7 @@ void ExportMovieDialog::updateResolutionCombo( int index )
 
     ui->widthSpinBox->setValue( camSize.width() );
     ui->heightSpinBox->setValue( camSize.height() );
+    validateResolution();
 }
 
 void ExportMovieDialog::setDefaultRange(int startFrame, int endFrame, int endFrameWithSounds)
@@ -128,6 +139,7 @@ void ExportMovieDialog::onFilePathsChanged(QStringList filePaths)
         ui->loopCheckBox->setChecked(false);
     }
     ui->transparencyCheckBox->setEnabled(supportsTransparency(filePath));
+    validateResolution();
 }
 
 bool ExportMovieDialog::supportsLooping(QString filePath) const
@@ -141,3 +153,13 @@ bool ExportMovieDialog::supportsTransparency(QString filePath) const
     return filePath.endsWith(".apng", Qt::CaseInsensitive) ||
            filePath.endsWith(".webm", Qt::CaseInsensitive);
 }
+
+void ExportMovieDialog::validateResolution()
+{
+    const bool isMp4 = getFilePath().endsWith(".mp4", Qt::CaseInsensitive);
+    const bool widthValid = !isMp4 || ui->widthSpinBox->value() % 2 == 0;
+    const bool heightValid = !isMp4 || ui->heightSpinBox->value() % 2 == 0;
+    ui->unevenWidthLabel->setHidden(widthValid);
+    ui->unevenHeightLabel->setHidden(heightValid);
+    setOkButtonEnabled(widthValid && heightValid);
+}
diff --git a/app/src/exportmoviedialog.h b/app/src/exportmoviedialog.h
index 0ac2d4920..58ce30720 100644
--- a/app/src/exportmoviedialog.h
+++ b/app/src/exportmoviedialog.h
@@ -54,6 +54,7 @@ class ExportMovieDialog : public ImportExportDialog
 
     bool supportsLooping(QString filePath) const;
     bool supportsTransparency(QString filePath) const;
+    void validateResolution();
 
     int mEndFrameWithSounds = 0;
     int mEndFrame = 0;
diff --git a/app/src/importexportdialog.cpp b/app/src/importexportdialog.cpp
index 142416c2c..f552d08c9 100644
--- a/app/src/importexportdialog.cpp
+++ b/app/src/importexportdialog.cpp
@@ -71,6 +71,11 @@ void ImportExportDialog::setInstructionsLabel(const QString& text)
     ui->instructionsLabel->setText(text);
 }
 
+void ImportExportDialog::setOkButtonEnabled(const bool enabled)
+{
+    ui->buttonBox->button(QDialogButtonBox::Ok)->setEnabled(enabled);
+}
+
 void ImportExportDialog::init()
 {
     switch (mMode)
diff --git a/app/src/importexportdialog.h b/app/src/importexportdialog.h
index 93b8fce8c..0f17499df 100644
--- a/app/src/importexportdialog.h
+++ b/app/src/importexportdialog.h
@@ -58,6 +58,7 @@ class ImportExportDialog : public QDialog
     void hideInstructionsLabel(bool hide);
 
     void setInstructionsLabel(const QString& text);
+    void setOkButtonEnabled(bool enabled);
 
 private slots:
     void browse();
diff --git a/app/ui/exportmovieoptions.ui b/app/ui/exportmovieoptions.ui
index 3e4ef4774..e09af31bf 100644
--- a/app/ui/exportmovieoptions.ui
+++ b/app/ui/exportmovieoptions.ui
@@ -40,7 +40,7 @@
      <property name="title">
       <string>Resolution</string>
      </property>
-     <layout class="QHBoxLayout" name="horizontalLayout">
+     <layout class="QHBoxLayout" name="horizontalLayout" stretch="1,0,1,1,0,1">
       <item>
        <widget class="QLabel" name="label">
         <property name="sizePolicy">
@@ -60,6 +60,16 @@
         </property>
        </widget>
       </item>
+      <item>
+       <widget class="QLabel" name="unevenWidthLabel">
+        <property name="toolTip">
+         <string>The MP4 format does not support odd width. Please specify an even width or use a different file format.</string>
+        </property>
+        <property name="text">
+         <string notr="true">⚠</string>
+        </property>
+       </widget>
+      </item>
       <item>
        <widget class="QSpinBox" name="widthSpinBox">
         <property name="maximum">
@@ -89,6 +99,16 @@
         </property>
        </widget>
       </item>
+      <item>
+       <widget class="QLabel" name="unevenHeightLabel">
+        <property name="toolTip">
+         <string>The MP4 format does not support odd height. Please specify an even height or use a different file format.</string>
+        </property>
+        <property name="text">
+         <string notr="true">⚠</string>
+        </property>
+       </widget>
+      </item>
       <item>
        <widget class="QSpinBox" name="heightSpinBox">
         <property name="maximum">