Adding Cutscenes to my Game

I made a cutscene in blender and exported it as a mp4. I want the cutscene to start when I hit play on the main menu. After the cutscene, the game starts. How are some ways i can accomplish this?

I also want to play some pre-rendered cutscenes when the player dies in the game, but thats a bridge i’ll cross when i get their, i’m main focused on the main menu for right now.