Ant-Man only began filming last week on the streets of San Francisco, but eagle-eyed fans have already noticed a cool Easter egg on set, which ties the story of this Marvel Phase Three adventure into 2008's The Incredible Hulk.

To see the photo in question: CLICK HERE

As you can see in the photo, Scott Lang (Paul Rudd) walks past a billboard poster for Pingo Doce soda. In The Incredible Hulk, which is still considered part of the Marvel Cinematic Universe, Bruce Banner (then played by Edward Norton), worked at a Brazillian bottling plant while he was trying to control his anger issues.

A drop of his gamma-infused blood drips into one of the Pingo Doce soda bottles. Later in the movie, Stan Lee (doing his infamous cameo) opens his fridge to retrieve that same bottle, drinking it only to come down with 'gamma sickness'.

You can watch the original scene here:

Will there be a deep connection to The Incredible Hulk storyline in this Marvel Phase Three Universe? We may have to wait until Ant-Man is in theaters to find out.