According to the Ant-Man movie's IMDb trivia page, there's an Alpha Flight reference:

"A newspaper article Hank Pym holds up mentions a Sasquatch. This refers to the Canadian superhero Sasquatch (Walter Langowski)."

I don't know if this has to be a reference to our Walter, but wouldn't it be cool if it was?

~ Le Messor
"Get your facts first, then you can distort them as you please."
~ Mark Twain