As tempting as it seems to wear tennis shoes with your tux, dont do it. I think it looks ridiculous. If youre 14 years old, maybe give it a shot. In general, dont portray anything that says Im too cool and I dont care. – Paul Feig
What I dont like is when I see stuff that I know has had a lot of improv done or is playing around where theres no purpose to the scene other than to just be funny. What you dont want is funny scene, funny scene, funny scene, and now heres the epiphany scene and then the movies over. – Paul Feig