In the opening sequence of Snatch:
1) The main characters are introduced through credits that appear with snippets of each character, showing their name but not the actor's name.
2) The first scene shows men in a van undressing from Orthodox Jewish costumes, accompanied by fast-paced music, as they are likely involved in crime.
3) A diamond is zoomed in on, indicating it will be important to the plot. Character names are introduced with visual effects to highlight their importance to the story.