Fred Willard starred in The Wedding PlannerThe Wedding Planner has genre Romantic comedyRomantic comedy has examples: You've Got Mail
[Human]: I love Fred Willard! Can you recommend anything for me? [Assistant]: He starred in The Wedding Planner, have you seen it? [Human]: Yes! I love Romantic comedy. Remind me who else starred in the film? 
Jennifer Lopez and Matthew McConaughey starred in that. If you like Romantic Comedy, you should try You've Got Mail.