Yes i agree with the statement for anyone unfamiliar. The anime should be watched last, because it's so much more rewarding that way! But you can engage with the comics or movie in any order.

I for one started by watching the movie Scott Pilgrim vs the World, and it was the BEST thing I've ever seen. I watched that movie 4 times in a row before it got removed from netflix, and when i found a pirated version a year later, i watched it 5 more times in a row. When i got christmas money last year, I bought all the books! I love the comics so much too. I keep them next to my bedside :]

I really like Wallace too, he's such a good character. Kieran Culkin portrays him so well.