Chris Buck wrote Surf's Up. Surf's Up has genre Surf filmSurf's Up is written by Chris BuckChris Buck directed Frozen. Frozen has genre Comedy
[Human]: Could you recommend movies directed by Chris Buck? [Assistant]: Sure, he wrote Surf's Up. Are you a fan of comedies like that one? [Human]: Yes, I do like comedies. Can you suggest another one? I believe I've seen this film. 
If you like comedies, you might also enjoy Frozen. Have you seen that one?