It gets a way bigger response if piles of physical stuff pour through the doorway that has to be handles by multiple people internally, vs an e-mail address that can just be handled by a bot or some webguy who may or may not be anywhere near the company.
Send the same letter to 20th Century Fox as well. I sent mine to both yesterday, trust me, real paper letters will have a MUCH bigger impact. C'mon there are like 60,000 people on the petition here, if LFilm and Fox got even 5000 paper letters each it would get noticed by a lot of people, and could even become a news story. Put what you like in the letter, but mention the magic word ANAMORPHIC in the first paragraph.
Fire up your printer people, don't be lazy, this might be our last chance to at least get an anamorphic version.